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六年级解方程专项练习200题(有答案).pdf

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    • 六年级解方程专项练习 200 题(有答案) (1)x﹣= , (2) x× ×= , (3) ﹣4x= , (4) 8×﹣2x= (5) :x=3:5, (6)1﹣20%x=, (8) 1÷(x﹣ )=6, (9)2x﹣ x=, (10)9×3﹣=, (11)x﹣25%x=24, (12) x﹣ += , (13)+90%x=78, (14)20%x﹣×3=, (15) x﹣ x=42, (16)+3×=, (17)1 ÷(x﹣)=5 , (18)x﹣=, (19) :x=3:12, (20) x+=, (21) :x=1: , (22) x×(2﹣ )=24, (23) 4x﹣ =3 , (24)12x+7×=, (25) x+ x= , (26)x:42=, (27)×+ x=, (28) :=:x, (29)χ﹣ χ= , (30)42: =χ: (31)5x﹣=75%, ( 32) 6x﹣=, (33)2(x﹣3)=, (34) =, (35) 4x﹣3×9=29, (36)16+8x=40, (37) x÷=3, (38) +2x= , (39)×3﹣7x=, (40) x﹣1﹣ x=2, (41)x﹣ x=14, (42)3x﹣ x=, (43)=, (44) : = , (45)=:, (46): =x: , (47)x= +1, (48)1﹣25%X+25%x= +25%x, (49)=, (50)×X=, (51) 5:8=x:32, (52)2x+3×=, (53)﹣= , (54) ×(7﹣)=, (55)x:= : , (56)150%x+66=99 (57)x+6﹣=16 (58) (59) (60)3÷(X﹣ )= (61) (X+) :2 =(X﹣4) : , (62) X÷=, (63)2X﹣4×6=80, (64)4×﹣3X=, (65)4X﹣=10, (66)+X=20, (67)×12+15X=, (68)6X+5=17, (69)×(+X)=, (70) : =X:, (71), (72) (73), (74)4( +x)=, (75) ×+ x= , (76)x﹣, (77)200:6=x:, (78)4÷X= , (79)8(x﹣2)=2(x+7) , (80):18%=, (81)﹣2x= , (82)x+ x=46, (83) :x= : , (84)=, (85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1) (86)= , (87)8(2X﹣7)=5(X+13) , (88)3(x+)=60, (89)+=, (90)3(x﹣)=, (91)﹣5x=, (92)x: = (93) +2x= , (94)x=15%, (95) x﹣ x=, (96)x+50%x=6, (97) :x=:12, (98)4x+2(8﹣x)=26, (99) x﹣ =0, (100) + x=1, (101)x×( + )=, (102), (103), (104)x﹣, (105)x×, (106)5x+35=650, (107)720÷3x=80, (108)﹣=, (109)4×﹣3x=6, (110)=, (111)6×3﹣=, (112)÷x= , (113)x÷=42, (114) x+ =, (115)7x÷3=, (116)12:=x: , (117)3(x+2)=4(x+1) , (118)3x﹣70%x=, (119) 6+ x=240, (120)﹣=, (121)x:=4:2 , (122)x﹣﹣6=16, (123) : =x:8, (124), (125)x:15= : , (126) x+ x=, (127)x×50%﹣ x=5, (128)1﹣ x= , (129)+1 x=3 , (130)3 x﹣2 =4, (131)﹣3x=2 , (132)3 ÷x=4, (133) x﹣5%=, (134) : = : (4﹣x) , (135) 6x+31=49, (136) 7x÷3=, (137) ﹣9x=, (138) x﹣=16, (139) 6×7+3x=69, (140) 6x+2x﹣56=0, (141) 3x﹣×4=, (142) ﹣=, (143) ÷(9﹣x)=3, (144) 3x÷=8, (145)5x+28=71, (146)﹣=, (147)8x﹣=, (148)﹣×4=, (149)54÷2+3x=72, (150)8x﹣=, (151) x÷ =, (152)x+30%x=26, (153) ﹣3x=, (154) 6×3﹣=, (155)10:x=: , (156) : =x:, (157)X﹣=, (158)﹣X=, (159)X﹣(+)=, (160) ÷x= , (161)=, (162)x﹣80%x=48, (163)75%x﹣5× =6, (164)x﹣=, (165)=, (166)﹣y=, (167)5x+=, (168) x﹣=, (169) 9x+5x=, (170) +=, (171)5 ÷x=, (172) ﹣ x= , (173)× ﹣3 x=, (174) (1+25%)x=, (175)x﹣40%x=9, (176)x×20%=, (178) x﹣x=, (179) x÷75%=3, (180)4x﹣, (181) :x= : , (182) (x﹣)×6=, (183)27﹣17x=, (184)+3x=×5, (185)2x+5=5x﹣7, (186) 3(x﹣2)=2﹣5(x﹣2) , (187)4x﹣3(20﹣x)+4=0, (188)﹣=1, (189)4x﹣5×6=12, (190)8x﹣3x=, (191)30×(x÷4)=60, (192)×﹣3x=, (193)5x﹣×5=8, (194) + x= ×2, (195)5x+×15=66, (196)+=1, (197)×16-8x=12, (198)=, (199)5(x+6)=75, (200)x÷+×3=4, 解方程专项练习 200 题答案: (1)x﹣= , = , , x= ; (2) x× ×= , x= , x×21= ×21, x=12; (3) ﹣4x= , ﹣4x+4x= +4x, = +4x, ÷4=4x÷4, x=. (4) 8×﹣2x= 20﹣2x=, +2X=20, 2X=, x=; (5) :x=3:5, 3x=×5, 3x=, x= (6)1﹣20%x=, 1﹣20%x+20%x=+20%x, +20%x=1, +20%x﹣=1﹣, 20%x=, 20%x×=×, x=3; (8) 1÷(x﹣ )=6, 1÷(x﹣ )×(x﹣ )=6×(x﹣ ) , 1=6×(x﹣ ) , 6x﹣6× =1, 6x﹣3=1, 6x=4, 6x÷6=4÷6, x= (9)2x﹣ x=, x(2﹣ )=, x=, x÷ =÷ , x=1; (10)9×3﹣=, 27﹣=, 27﹣+=+, +=27, +﹣=27﹣, =, ÷=÷, x=8 (11)x﹣25%x=24, 75%x=24, 75%x÷75%=24÷75%, x=32; (12) x﹣ += , x﹣= , x﹣+= +, x=, x÷ =÷ , x=1 (13)+90%x=78, =78, ÷=78÷, x=52; (14)20%x﹣×3=, 20%x﹣=, 20%x﹣+=+, 20%x÷20%=8÷20%, x=40; (15) x﹣ x=42, x=42, x÷ =42÷ , x=252 (16)+3×=, +=, +﹣=﹣, =60, ÷=60÷, x=100; (17)1 ÷(x﹣)=5 , ÷(x﹣)×(x﹣)=(x﹣) , x﹣=, x﹣+=+, x=4, x÷=4÷, x= (18)x﹣=, x﹣+=+, x=; (19) :x=3:12, 3x= ×12, 3x÷3=9÷3, x=3 (20) x+=, x+﹣=﹣, x=, x× =× , x=8. (21) :x=1: , x=×, x= (22) x×(2﹣ )=24, x× =24, x× ÷ =24÷ , x=20; (23) 4x﹣ =3 , 4x﹣ + =3 + , 4x=4, 4x÷4=4÷4, x=1 (24)12x+7×=, 12x+=, 12x+﹣=﹣, 12x÷12=18÷12, x=; (25) x+ x= , x= , x×, x= ; (26)x:42=, 10x=42× , 10x÷10=30÷10, x=3 (27)×+ x=, + x=, + x﹣=﹣, x=3, x÷ =3÷ , x=6; (28) :=:x, =×, =, ÷=÷, x= (29)χ﹣ χ= , x= , x=, x=3; (30)42: =χ: x=42× , x=30, x=50; (31)5x﹣=75%, 5x﹣+=75%+, 5x÷5=÷5, x= ( 32) 6x﹣=, 6x﹣+=+, 6x=, 6x÷6=÷6, x=; (33)2(x﹣3)=, 2(x﹣3)÷2=÷2 x﹣3=, x﹣3+3=+3, x=; (34) =, ÷=÷, x=4; (35) 4x﹣3×9=29, 4x﹣27=29, 4x﹣27+27=29+27, 4x=56, 4x÷4=56÷4, x=14; (36)16+8x=40, 16+8x﹣16=40﹣16, 8x=24, 8x÷8=24÷8, x=3; (37) x÷=3, x÷×=3×, x= (38) +2x= , +2x=, 2x= , 2x÷2= ÷2, x= ; (39)×3﹣7x=, ﹣7x=, ﹣7x﹣=﹣, ﹣7x=0, 7x÷7=÷7, x=; (40) x﹣1﹣ x=2, x﹣1=2, x﹣1+1=2+1, x=3, x=3, x=18; (41)x﹣ x=14, x=14, x=14, x=18; (42)3x﹣ x=, x=, x=, x=; (43)=, =72×, =, ÷=÷, x=; (44) : = , x=×5, x=6, x=6, x=9; (45)=:, x=18×, x=, x=, x=12; (46): =x: , x=×, x=, x=; (47)x= +1, x× =× , x=1 (48) 1﹣25%X+25%x= +25%x, +﹣=1﹣, =, x=3; (49)=, =×, ÷=×÷, x=8; (50)×X=, ×X÷ =, x= ; (51) 5:8=x:32, 8x=5×32, 8x÷8=5×32÷8, x=20 (52)2x+3×=, 2x+=, 2x+﹣=﹣, 2x÷2=÷2, x=; (53)﹣= , = , ÷= ÷, x= ; (54) ×(7﹣)=, ×(7﹣)=, 7﹣=, 7﹣+=+, 7﹣=+﹣, ÷=÷, x=; (55)x:= : , x=× , x=, x= (56) 150%x+66=99 +66=99 =33 x=22 (57)x+6﹣=16 +6=16 =10 x=50 (58) x= (59) = x=10 (60)3÷(X﹣ )= 3÷(X﹣ )×(x﹣ )=×(x﹣ ) , 3=﹣, 3+=﹣+, =, ÷=÷, x=; (61) (X+) :2 =(X﹣4) : , ×(x﹣4)=(x+)× , x﹣×4= x+ ×, x﹣10﹣ x= x+x, ﹣10+10=+10, ÷=÷, x= (62) X÷=, X÷×=×, X=; (63)2X﹣4×6=80, 2X﹣24=80, 2X﹣24+24=80+24, 2X=104, 2X÷2=104÷2, X=52; (64)4×﹣3X=, 18﹣3X=, 18﹣3X+3X=+3X, +3X=18, +3X﹣=18﹣, 3X=, 3X÷3=÷3, X=; (65)4X﹣=10, 4X﹣+=10+, 4X=, 4X÷4=÷4, X=; (66)+X=20, =20, ÷=20÷, X=; (67)×12+15X=, +15X=, +15X﹣=﹣, 15X=42, 15X÷15=42÷15, X= (68)6X+5=17, 6x+5﹣5=17﹣5, 6x÷6=12÷6, x=2; (69)×(+X)=, ×(+X)÷=÷, +x=7, +x﹣=7﹣, x=; (70) : =X:, x= ×, x÷ =, x= (71), , , ; (72) , , , , ; (73), , , (74)4( +x)=, +4x=, +4x﹣=﹣, 4x=4, x=1; (75) ×+ x= , + x= , + x﹣= ﹣, x=, x= (76)x﹣, , , x=; (77)200:6=x:, 6x=200×, 6x÷6=480÷6, x=80 (78)4÷X= , 4÷X×X= X, X=4, X÷ =4÷ , X=10; (79)8(x﹣2)=2(x+7) , 8X﹣16=2X+14, 6X﹣16=14, 6X=30, X=5; (80):18%=, X=×, X=, X= (81)﹣2x= , ﹣2x+2x= +2x, +2x= , +2x﹣ = ﹣ , 2x=, 2x÷2=÷2, x=; (82)x+ x=46, x( + )=46, x=46, x÷=46÷, x=40; (83) :x= : , x= × , x=, x÷ =÷ , x=; (84)=, =×2, =, ÷=÷, x=8 (85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1) 15x﹣20﹣2x+2=10x﹣5, 13x﹣18=10x﹣5, 13x﹣18﹣10x=10x﹣5﹣10x, 3x﹣18=﹣5, 3x﹣18+18=﹣5+18, 3x=13, 3x÷3=13÷3, x=; (86)= , 3(6x﹣1)=64, 18x﹣3=64, 18x﹣3+3=64+3, 18x=67, 18x÷18=67÷18, x= (87)8(2X﹣7)=5(X+13) , 16x﹣56=5x+65, 16x﹣56﹣5x=5x+65﹣5x, 11x﹣56=65, 11x﹣56+56=65+56, 11x=121, 11x÷11=121÷11, x=11, (88)3(x+)=60, 3(x+)÷3=60÷3, x+=20, x+﹣=20﹣, x= (89)+=, +﹣=﹣, =, ÷=÷, x=; (90)3(x﹣)=, 3x﹣=, 3x﹣+=+, 3x=, 3x÷3=÷3, x=; (91)﹣5x=, ﹣5x+5x=+5x, +5x=, +5x﹣=﹣, 5x=, 5x÷5=÷5, x= (92) x: = 25x= ×3, 25x= , 25x÷25=, x=; (93) +2x= , +2x=, 2x=0, x=0; (94)x=15%, x×x=15%x, =, ÷=÷, x=1; (95) x﹣ x=, x=, x=, x= . (96)x+50%x=6, =6, ÷=6÷, x=4; (97) :x=:12, =, ÷=9÷, x=30; (98)4x+2(8﹣x)=26, 4x+16﹣2x=26, 2x+16=26, 2x+16﹣16=26﹣16, 2x÷2=10÷2, x=5 (99) x﹣ =0, x﹣ + =0+ , x= , x×3= ×3, x= ; (100) + x=1, + x﹣ =1﹣ , x= , x× = × , x=1; (101)x×( + )=, x=, x×=×, x=. (102), , , 3x÷3=, x= ; (103), , , x=20; (104)x﹣, , , x=; (105)x×, x×, x= (106)5x+35=650, 5x+35﹣35=650﹣35, 5x=615, 5x÷5=615÷5, x=123; (107)720÷3x=80, 720÷3x×3x=80×3x, 240x=720, 240x÷240=720÷240, x=3; (108)﹣=, (﹣)x=, =, ÷=÷, x=3; (109)4×﹣3x=6, 18﹣3x=6, 18﹣3x+3x=6+3x, 6+3x=18, 6+3x﹣6=18﹣6, 3x=12, 3x÷3=12÷3, x=4 (110)=, =10×, ÷=8÷, x=; (111)6×3﹣=, 18﹣=, 18﹣+=+, +=18, +﹣=18﹣, =, ÷=÷, X=6 (112)÷x= , x=÷ , x=; (113)x÷=42, x=42×, x=9; (114) x+ =, x+ ﹣ =﹣ , x= , x÷ = ÷ , x= (115)7x÷3=, 7x÷3×3=×3, 7x=, 7x÷7=÷7, x=; (116)12:=x: , =12× , =6, ÷=6÷, x=10; (117)3(x+2)=4(x+1) , 3x+6=4x+4, 3x+6﹣3x=4x+4﹣3x, x+4=6, x+4﹣4=6﹣4, x=2 (118)3x﹣70%x=, 3x﹣=, =, ÷=÷, x=4; (119) 6+ x=240, 6+ x﹣6=240﹣6, x=234, x÷ =234÷ , x=390 (120)﹣=, ﹣+=+, +=, +﹣=﹣, ÷=10÷, x=25; (121)x:=4:2 , 2 x=×4, 2 x÷2 =14÷2 , x=6 (122)x﹣﹣6=16, ﹣6=16, ﹣6+6=16+6, ÷=22÷, x=110; (123) : =x:8, x=8× , x× =8× × , x=4; (124), =2×, ÷=÷, x=; (125)x:15= : , x=15× , x×6=15× ×6, x=40; (126) x+ x=, x=, x×=×, x= ; (127)x×50%﹣ x=5, x=5, x×6=5×6, x=30; (128)1﹣ x= , 1﹣ x+ x= + x, + x=1, + x﹣ =1﹣ , x× = × , x=; (129)+1 x=3 , +1 x﹣=3 ﹣, x=, x× =× , x= (130)3 x﹣2 =4, 3 x﹣2 +2 =4+2 , 3 x=6 , 3 x÷3 =6 ÷3 , x=; (131)﹣3x=2 , ﹣3x+3x=2 +3x, 3x+2 =, 3x+2 ﹣2 =﹣2 , 3x=6, 3x÷3=6÷3, x=2; (132)3 ÷x=4, 3 ÷x×x=4×x, 4x=3 , 4x÷4=3 ÷4, x= (133) x﹣5%=, 解: x﹣5%+5%=+5%, x=, x=23; (134) : = : (4﹣x) , 解:4x=, 2﹣ x+ x=x, 2﹣+ x, = x, x=3 (135) 6x+31=49, 6x+31﹣31=49﹣31, 6x=18, 6x÷6=18÷6, x=3; (136) 7x÷3=, 7x÷3×3=×3, 7x=, 7x÷7=÷7, x=; (137) ﹣9x=, ﹣9x+9x=+9x, +9x=, +9x﹣=﹣, 9x=, 9x÷9=÷9, x=; (138) x﹣=16, (1﹣)x=16, =16, ÷=16÷, x=25; (139) 6×7+3x=69, 42+3x=69, 42+3x﹣42=69﹣42, 3x=27, 3x÷3=27÷3, x=9; (140) 6x+2x﹣56=0, (6+2)x﹣56+56=0+56, 8x=56, 8x÷8=56÷8, x=7 (141) 3x﹣×4=, 3x﹣=, 3x﹣+=+, 3x=, 3x÷3=÷3, x=; (142) ﹣=, =, ÷=÷, x=; (143) ÷(9﹣x)=3, 9﹣x=÷3, 9﹣x=, x=9﹣, x=; (144) 3x÷=8, 3x÷×=8×, 3x=, 3x÷3=÷3, x= (145)5x+28=71, 5x+28﹣28=71﹣28, 5x=43, 5x÷5=43÷5, x=; (146)﹣=, ﹣+﹣=+﹣, =, =, ÷=÷, x=4; (147)8x﹣=, =, ÷=÷, x=7; (148)﹣×4=, ﹣=, ﹣+=+, =, ÷=÷, x=, ; (149)54÷2+3x=72, 27+3x=72, 27+3x﹣27=72﹣27, 3x=45, 3x÷3=45÷3, x=15; (150)8x﹣=, 8x﹣+=+, 8x=, 8x÷8=÷8, x= (151) x÷ =, x÷ × =× , x=, x×4=×4, x= ; (152)x+30%x=26, (1+30%)x=26, =26, ÷=26÷, x=20; (153) ﹣3x=, ﹣3x+3x=+3x, +3x=, +3x﹣=﹣, 3x=, 3x÷3=÷3, x= (154) 6×3﹣=, 18﹣=, 18﹣+=+, 18=+, 18﹣=+﹣, =, ÷=÷, x=6; (155)10:x=: , =10×, =8, ÷=8÷, x=; (156) : =x:, x= ×, x=, x÷ =÷ , x= (157)X﹣=, X﹣+=+, X=; (158)﹣X=, ﹣X+X=+X, X+=, X+﹣=﹣, X=20; (159)X﹣(+)=, X﹣=, X﹣+=+, X= (160) ÷x= , ÷x×x= ×x, x= , x÷ = ÷ , x= × , x= ; (161)=, +=+, =20, ×8=20×8, x=160 (162)x﹣80%x=48, (1﹣)x=48, =48, ÷=48÷, x=240; (163)75%x﹣5× =6, ﹣3=6, ﹣3+3=6+3, =9, ÷=9÷, x=12 (164)x﹣=, x﹣+=+, x=; (165)=, ÷=÷, x=3; (166)﹣y=, =, ÷=÷, y=; (167)5x+=, 5x+﹣=﹣, 5x=5, 5x÷5=5÷5, x=1 (168) x﹣=, x﹣+=﹣, x=; (169) 9x+5x=, 14x=, 14x÷14=÷14, x=; (170) +=, ﹣+=﹣, =8, ÷=8÷, x= (171)5 ÷x=, 5 ÷x×x=x, 5 =x, 5 ÷=x÷, x=; (172) ﹣ x= , ﹣ x+ x= + x, = + x, ﹣ = + x﹣ , = x, ÷ = = x÷ , x=1; (173)× ﹣3 x=, ﹣=, ﹣+=+, =+, ﹣=+﹣, 0=, 0÷=÷, x=0 (174) (1+25%)x=, =, ÷=÷, x=; (175)x﹣40%x=9, =9, ÷=9÷, x=15; (176)x×20%=, x×20%÷20%=÷20%, x=76 (177)30x﹣30=180, 30x﹣30+30=180+30, 30x=210, 30x÷30=210÷30, x=7; (178) x﹣x=, x=, x÷ =÷ , x=; (179) x÷75%=3, x÷75%×75%=3×75%, x= , x÷ = ÷ , x= (180)4x﹣, 4x﹣6=, 4x=+6, x=÷4, x=. (181) :x= : , x=× , x=2, x=2× , x=5 (182) (x﹣)×6=, 6x﹣×6=, 6x﹣27=, 6x﹣27+27=+27, 6x=, 6x÷6=÷6, x=6; (183)27﹣17x=, 27﹣17x+17x=+17x, +17x=27, +17x﹣=27﹣, 17x=, 17x÷17=÷17, x=; (184)+3x=×5, +3x﹣=﹣, 3x=, 3x÷3=÷3, x= (185)2x+5=5x﹣7, 2x+5﹣2x=5x﹣7﹣2x, 3x﹣7=5, 3x﹣7+7=5+7, 3x=12, 3x÷3=12÷3, x=4; (186) 3(x﹣2)=2﹣5(x﹣2) , 3x﹣6=12﹣5x, 3x﹣6+5x=12﹣5x+5x, 8x﹣6=12, 8x﹣6+6=12+6, 8x=18, 8x÷8=18÷8, x=; (187)4x﹣3(20﹣x)+4=0, 7x﹣56=0, 7x﹣56+56=0+56, 7x=56, 7x÷7=56÷7, x=8; (188)﹣=1, (﹣)×24=1×24, 6(y+2)﹣4(2y﹣3)=24, 30﹣2y=24, 30﹣2y+2y=24+2y, 2y+24=30, 2y+24﹣24=30﹣24, 2y=6, 2y÷2=6÷2, y=3 (189)4x﹣5×6=12, 4x﹣30=12, 4x﹣30+30=12+30, 4x=42, 4x÷4=42÷4, x=; (190)8x﹣3x=, 5x=, 5x÷5=÷5, x=; (191)30×(x÷4)=60, 30×(x÷4)÷30=60÷30, x÷4=2, x÷4×4=2×4, x=8; (192)×﹣3x=, ﹣3x=, ﹣3x+3x=+3x, 3x+=, 3x+﹣=﹣, 3x=, 3x÷3=÷3, x= (193)5x﹣×5=8, 5x﹣12+12=8+12, 5x=20, 5x÷5=20÷5, x=4, (194) + x= ×2, x= , x×= ×, x=. (195)5x+×15=66, 5x+36=66, 5x+36-36=66-36, 5x=30, 5x÷5=30÷5, x=6; (196)+=1, 5x=1, 5x÷5=1÷5, x=; (197)×16-8x=12, 40-8x=12, 40-8x+8x=12+8x, 8x+12=40, 8x+12-12=40-12, 8x=28, 8x÷8=28÷8, x=. (198)=, +3x=+3x, +3x=, +=, 3x=, 3x÷3=÷3, x=; (199)5(x+6)=75, 5x+30=75, 5x+30-30=75-30, 5x=45, 5x÷5=45÷5, x=9; (200)x÷+×3=4, x÷+=4, x÷+, x÷=, x÷×=×, x=. 。

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