1、人教版七年级数学上册一元一次方程复习题精选12一、解方程。 3 xx49 x2x3 4 4x13.5x5x0.5x201041 7x x 2 8x5.5x2428 2 x4812x 9x3.5x13 3 x5x7 x87x1 4 1 5 x9x x6x9x122 8 4x4x2x16 y2.5y2y5 y2y5.5y157.5 7x3x7 y57y5 5x(3x9)7x2(x5) 5 5 1 bbb87 5x2(x4)24(x7)4 4 2 3(x3)9x 6x2(5x7)82(x9) 82(x5)44(29.5x) 5(x1)5x 1 1 8(x2)3x5(x3) 9y93y3 5 5 x2
2、 3x 33 x9.5x4 5 4 x3 2x1 5x5 3(x4)2x 6 3 2a(66a)1 8b(2b6)21 9x3(3x7)16 6y2(3y6)9 3(x1)7(x4) 5x5(x6) 4x5 8x9 7x9.5x5 2 7 9x4 6x7 9x4(x7) 6 12 6y7 9y7 6 4(22.5y)(3.5y2) 2 8 6y8 5y7 7y9 4 2(x4)5(x4) 4 6 10 一、解方程。 1 9xx17 x4x4 8 x11.5x6x4.5x25277 7x x 15 x3.5x82.552 2 x61215x 2x9.5x4 5 x4x3 3x87x2 8 5 9
3、 x1x 2x6x8x144 8 x7x7x20 y3y5y13 y4y10y156.5 x9x4 y37y7 6x(5x3)4x5(x5) 1 9 7 bbb47 9x4(x3)13(x2)4 4 2 5(x1)3x 5x2(6x3)25(x5) 33(x9)44(13.5x) 5(x8)6x 1 1 6(x5)4x4(x4) y78y5 4 6 x4 2x 14 x2.5x10 6 2 x1 3x1 6x1 3(x9)6x 2 3 4a(42a)1 8b(3b7)22 6x2(6x3)20 5y3(1y9)9 3(x5)5(x2) 2x4(x6) 8x9 4x6 x0.5x8 4 5 3x
4、4 6x1 2x2(x3) 6 12 5y1 5y4 4 2(101.5y)(2y2) 2 6 3y3 8y2 4y3 1 2(x1)8(x2) 4 8 10 一、解方程。 5 xx19 3x6x6 2 2x0.5x8x10.5x10471 5x x 4 x7.5x6584 2 5x8514x 6x6.5x6 5 x9x2 2x96x6 8 1 3 x6x x7x8x148 8 2x7x3x2 y2y6y4 4.5y3.5y7.5y163.5 5x5x8 6y23y3 2x(6x5)8x3(x4) 7 5 7 bbb41 3x2(x6)35(x3)2 2 4 2(x1)6x 2x3(3x6)8
5、2(x9) 32(x4)92(65.5x) 4(x3)8x 1 1 4(x2)3x5(x4) y83y8 2 2 x1 1x 61 6x1.5x2 5 3 x4 2x1 3x5 2(x1)4x 6 3 7a(46a)2 8b(3b6)25 3x4(5x3)8 4y3(6y2)9 2(x3)8(x2) 4x4(x8) 7x9 8x4 x8.5x2 3 8 7x1 6x1 8x7(x7) 3 9 7y7 9y5 1 5(82y)(3y6) 2 6 4y3 8y3 2y9 1 3(x4)6(x6) 2 6 10 一、解方程。 9 xx37 2x3x6 2 x13.5x6x12.5x20886 5x
6、x 16 8x2.5x50.558 4 x51812x 8x5.5x17 3 x1x5 x89x5 2 1 9 x4x x7.5x9x162 2 x9x3x10 y9y9.5y7 y3y2.5y175 3x4x3 3y45y6 7x(7x9)2x4(x9) 3 1 5 bbb28 3x4(x3)43(x4)2 2 4 4(x6)3x 3x2(6x3)63(x1) 54(x5)32(36.5x) 4(x4)9x 1 1 3(x1)2x8(x7) y63y3 3 4 x1 3x 35 7x2.5x18 2 4 x2 4x3 3x5 3(x8)5x 3 5 7a(64a)3 7b(6b5)6 7x4
7、(2x2)19 9y3(1y9)6 3(x5)5(x6) 9x6(x2) 2x2 2x6 4x4.5x17 4 6 3x2 3x2 9x4(x6) 6 12 8y9 9y7 3 6(101.5y)(3.5y6) 4 6 4y8 5y7 5y3 2 2(x2)6(x3) 2 8 12 一、解方程。 1 xx17 7x7x9 4 6x10.5x5x4.5x25667 3x x 14 4x4.5x8158 2 7x91910x x7.5x18 9 x9x5 3x38x5 4 7 1 x5x 9x8.5x7x182 4 10x3x9x2 y8y9y12 y10y5.5y87.5 8x8x4 3y62y
8、6 7x(7x3)4x2(x6) 5 3 5 bbb87 2x4(x1)95(x2)4 4 2 5(x6)9x 2x4(3x4)34(x3) 94(x7)56(22x) 3(x2)7x 1 1 2(x5)6x8(x2) 7y33y4 5 4 x3 3x 61 x6.5x20 4 6 x3 2x3 3x6 2(x6)4x 3 2 6a(15a)-4 5b(5b5)29 6x4(4x4)17 6y4(4y3)2 3(x4)5(x5) 4x6(x5) 9x8 3x7 7x3.5x17 4 6 7x5 2x9 6x5(x6) 6 9 5y7 4y4 4 2(93y)(4.5y5) 4 6 4y3 3y
9、7 6y6 4 4(x3)7(x4) 2 6 12 一、解方程。 1 xx16 x3x7 8 x7.5x9x1.5x5213 9x x 5 x6.5x44.534 4 x4716x x1.5x6 5 x8x3 3x29x8 8 5 9 x4x 5x0.5x6x124 4 x8x2x4 y4.5y9.5y8 y6.5y8.5y169 8x2x9 y69y4 9x(7x4)6x3(x6) 1 9 9 bbb49 6x3(x2)25(x8)2 4 8 5(x1)9x 6x2(2x6)62(x9) 24(x2)24(47.5x) 4(x7)2x 1 1 6(x5)6x4(x9) y82y7 2 3 x
10、4 2x 61 2x6.5x4 4 4 x3 2x4 4x4 5(x6)8x 4 5 2a(69a)4 2b(3b5)8 3x4(4x5)13 3y4(3y9)6 4(x4)7(x4) 2x3(x3) 5x7 7x9 6x4.5x2 2 6 5x7 5x7 9x7(x9) 6 9 7y7 2y8 3 4(72y)(2y4) 2 6 6y5 8y8 3y8 6 3(x5)7(x4) 4 6 10 一、解方程。 9 xx27 x8x6 2 4x3.5x5x2.5x10229 3x x 11 5x0.5x2578 2 5x81420x x8.5x15 5 x8x8 2x36x1 2 5 5 x8x
11、3x6x9x164 2 19x3x9x3 y4.5y9.5y12 10y3.5y2.5y194.5 x5x3 y43y2 9x(2x8)4x3(x8) 1 7 9 bbb24 2x3(x5)45(x9)4 2 4 5(x2)7x 2x3(5x3)84(x5) 94(x2)84(27x) 2(x4)4x 1 1 8(x5)4x5(x4) 2y97y9 4 2 x3 3x 51 x9.5x18 2 3 x2 4x4 6x2 2(x8)4x 6 2 3a(42a)-4 3b(4b7)21 2x2(2x7)5 4y3(5y3)2 3(x5)8(x5) 2x6(x8) 2x9 5x6 2x5.5x17
12、2 6 2x2 8x2 3x3(x4) 3 12 7y3 4y5 1 2(83y)(1.5y3) 2 6 5y2 7y5 5y3 3 4(x4)8(x5) 2 8 12 一、解方程。 7 xx26 x4x4 8 4x12.5x2x15.5x5645 5x x 6 3x5.5x92.512 4 x61815x 5x3.5x14 5 x9x5 5x67x2 2 3 9 x8x x10x4x192 4 4x5x9x16 2y9y4.5y2 y4.5y7y1810 x2x8 6y35y4 6x(7x10)7x3(x4) 1 5 5 bbb41 2x3(x1)92(x1)8 8 8 2(x9)3x 2x
13、4(6x4)25(x6) 73(x7)24(55x) 3(x6)7x 1 1 4(x3)6x9(x3) 7y72y9 4 2 x3 2x 13 7x1.5x12 2 6 x4 3x4 9x5 4(x6)2x 5 3 9a(49a)5 6b(6b8)25 5x4(2x3)8 6y4(2y4)3 2(x6)7(x1) 4x5(x6) 2x4 6x9 4x7.5x7 3 5 8x8 6x9 3x9(x2) 3 9 3y2 7y5 2 3(14.5y)(4y3) 4 8 8y5 6y2 6y6 4 2(x2)8(x3) 4 8 10 一、解方程。 3 8xx16 x7x3 2 3x15.5x2x7.5x35695 5x x 10 7x8.5x72.542 4 x5510x 7x8.5x11 5 x3x9 3x29x3 8 3 3 x2x 7x2.5x4x158 2 x7x5x17 y5.5y4y19 4.5y8y2.5y2010 x3x4 y24y6 9x(6x1)2x2(x8) 9 3 3 bbb22 6x2(x1)23(x9)8 2 2 5(x3)4x 6x4(6x5)54(x5) 34(x8)3
