人教版七年级数学上册一元一次方程复习题精选33.docx

1、人教版七年级数学上册一元一次方程复习题精选33一、解方程。 3 9xx48 x6x5 4 7x12.5x9x16.5x30453 9x x 3 x3.5x7454 2 3x9914x x7.5x15 3 x2x9 x96x1 2 5 7 x4x x10x5x188 8 8x6x3x17 y4.5y5y14 3y5y7y175 3x3x7 y64y9 2x(2x4)4x2(x7) 1 3 1 bbb82 4x4(x6)53(x4)2 4 4 2(x9)7x 6x3(3x2)42(x6) 34(x5)46(99x) 4(x5)6x 1 1 8(x5)4x3(x5) 9y68y8 2 4 x1 2x

2、 23 2x2.5x16 3 4 x2 3x2 3x2 4(x8)9x 5 5 2a(47a)-2 3b(6b2)5 2x4(2x2)13 4y3(4y2)4 4(x5)6(x6) 4x4(x7) 7x5 8x5 x2.5x12 4 5 4x9 2x4 6x8(x7) 6 12 2y4 7y3 2 5(63.5y)(3y8) 4 8 3y4 5y8 7y4 5 2(x4)8(x4) 4 8 10 一、解方程。 9 xx59 x5x3 2 2x6.5x3x11.5x10648 7x x 3 x3.5x6548 8 2x5910x 9x3.5x2 1 x4x3 4x29x9 8 1 7 x2x x

3、3x7x152 2 7x9x6x2 9y4y7y4 5y9.5y5.5y116 9x3x8 y56y9 8x(7x10)4x3(x1) 7 9 5 bbb43 6x3(x5)62(x8)2 8 4 2(x2)4x 4x4(4x7)52(x7) 84(x4)94(98x) 5(x2)6x 1 1 3(x5)6x7(x7) 2y34y3 6 5 x1 1x 46 x5.5x3 4 2 x4 3x4 6x4 2(x9)5x 2 5 3a(25a)5 5b(6b2)1 7x2(5x6)13 2y3(2y8)7 3(x6)7(x1) 2x4(x3) 3x5 8x3 7x5.5x19 2 7 8x3 7x

4、9 9x2(x3) 6 12 3y5 8y1 3 4(32y)(3.5y5) 4 6 8y9 7y8 2y4 2 4(x5)5(x2) 4 8 12 一、解方程。 7 8xx59 x8x2 4 6x5.5x2x7.5x5493 7x x 10 3x5.5x43.568 4 x51710x x7.5x2 5 x4x1 x86x2 2 9 9 x1x x3.5x9x164 8 x2x3x2 y9y5.5y6 y7y2y76.5 6x4x8 y83y4 3x(7x8)7x2(x4) 3 1 1 bbb22 7x5(x1)93(x5)2 8 8 3(x3)2x 6x3(2x6)73(x9) 64(x3

5、)94(39.5x) 2(x4)8x 1 1 9(x5)6x9(x7) y29y4 5 6 x3 2x 35 2x1.5x10 6 5 x1 3x1 6x1 5(x2)4x 2 4 2a(19a)-4 7b(3b6)9 3x4(2x5)4 2y4(2y5)2 4(x3)5(x5) 2x6(x8) 3x1 4x7 x0.5x7 4 8 2x9 6x9 8x5(x4) 6 12 6y1 8y1 2 6(23y)(2.5y3) 4 6 6y8 9y3 4y4 3 2(x2)6(x3) 4 6 12 一、解方程。 3 5xx28 3x3x3 4 9x0.5x5x8.5x30826 9x x 14 x2

6、.5x51.532 2 x91417x 4x3.5x14 1 x8x5 5x37x5 2 1 9 x4x 2x5.5x6x172 8 6x9x4x3 9y5.5y9y13 6y1.5y4.5y95 x9x3 y55y2 9x(5x10)5x3(x9) 1 7 3 bbb21 9x3(x1)42(x3)2 8 4 2(x4)6x 6x3(4x5)64(x6) 92(x4)42(11.5x) 4(x4)2x 1 1 3(x2)2x3(x2) y88y5 4 4 x4 1x 13 3x4.5x5 3 4 x2 4x1 9x6 3(x4)4x 4 5 5a(13a)-1 9b(6b4)26 8x4(3

7、x5)13 3y2(5y5)8 2(x3)7(x4) 8x5(x1) 8x4 2x1 x8.5x6 4 6 8x5 9x8 4x7(x5) 6 12 6y5 3y8 1 5(63y)(4y1) 4 8 3y5 5y8 5y5 1 2(x1)5(x6) 4 8 12 一、解方程。 7 6xx59 x9x7 2 x4.5x7x18.5x15297 7x x 13 8x6.5x5344 8 x71910x 2x5.5x9 9 x8x8 2x98x9 2 5 7 x5x x7x2x178 2 x4x7x11 y3y9y12 8y6.5y5y39.5 5x2x5 8y85y3 6x(6x10)2x2(x

8、3) 9 7 3 bbb26 7x5(x7)35(x8)8 8 4 4(x4)6x 6x2(5x1)52(x8) 92(x9)98(66x) 4(x3)2x 1 1 8(x6)6x1(x8) 4y26y3 3 6 x4 4x 22 6x3.5x8 2 3 x3 2x1 2x5 3(x4)4x 3 5 4a(28a)-3 2b(4b4)1 3x3(2x9)2 6y3(2y2)4 3(x3)8(x4) 3x5(x5) 2x4 5x9 7x4.5x16 4 6 6x4 9x5 2x3(x4) 6 9 2y3 5y7 2 2(93y)(4.5y6) 2 6 6y7 2y3 4y4 1 3(x3)7(x

9、6) 2 6 10 一、解方程。 5 xx27 6x2x2 8 x5.5x7x9.5x35886 7x x 10 9x0.5x34.542 2 x71714x x2.5x2 7 x4x7 x69x5 8 1 7 x3x x1x3x194 4 x3x8x2 6.5y7y2.5y17 10y6.5y6.5y46.5 x8x8 y32y7 9x(2x8)7x4(x6) 1 5 5 bbb83 5x2(x8)53(x2)8 2 2 5(x2)9x 2x4(6x3)65(x7) 62(x10)44(38x) 2(x7)7x 1 1 2(x6)6x8(x5) 4y33y5 6 6 x4 3x 43 x8.

10、5x18 4 5 x3 3x2 7x4 4(x5)4x 4 2 7a(66a)3 5b(2b8)2 5x3(3x8)19 7y4(1y7)6 2(x1)5(x3) 7x2(x3) 6x9 2x9 4x7.5x3 2 6 4x7 9x3 9x6(x6) 6 9 8y6 6y5 3 4(31.5y)(4.5y9) 4 8 5y9 3y3 6y9 1 4(x3)8(x6) 4 6 10 一、解方程。 7 xx38 x5x2 2 x13.5x4x12.5x45882 5x x 10 x4.5x23.528 8 x31111x x8.5x5 7 x3x8 x77x9 4 9 9 x6x 9x6x9x18

11、2 4 19x8x2x4 y7.5y9.5y8 9.5y7y6.5y101.5 x7x7 4y73y9 3x(7x7)3x2(x4) 1 7 9 bbb87 2x3(x7)84(x7)4 2 2 3(x4)3x 3x2(6x8)74(x6) 82(x2)98(93x) 5(x6)7x 1 1 6(x3)6x5(x1) 4y54y2 3 4 x4 4x 25 x1.5x7 2 3 x3 3x2 5x5 2(x3)4x 2 2 3a(22a)-1 5b(3b5)0 5x3(5x9)13 4y2(2y7)6 2(x5)8(x5) 6x6(x6) 6x8 4x5 8x2.5x4 3 6 5x5 5x9

12、 9x4(x5) 6 12 5y7 8y8 6 5(44y)(4y6) 2 8 5y5 3y3 3y3 6 4(x3)7(x6) 4 8 10 一、解方程。 3 6xx59 x2x8 2 5x0.5x5x9.5x101068 3x x 11 3x8.5x82.538 8 x4418x x0.5x8 9 x6x3 x37x2 8 7 9 x5x x9x9x124 4 x4x8x9 7y6.5y5y11 y8.5y10y137 x3x6 y85y9 9x(3x4)7x3(x9) 1 1 1 bbb23 3x5(x9)64(x2)8 2 2 3(x4)3x 3x3(4x3)72(x3) 23(x8)

13、42(66x) 4(x4)3x 1 1 9(x3)2x5(x4) 7y36y3 4 3 x4 4x 62 x1.5x9 6 6 x3 3x1 3x5 2(x3)3x 2 3 8a(57a)-2 9b(5b9)11 5x2(3x3)20 8y2(6y6)8 3(x5)5(x3) 6x6(x1) 4x9 9x4 9x3.5x12 3 6 8x9 4x9 4x3(x8) 3 9 2y6 2y8 4 2(72.5y)(3.5y8) 4 8 7y3 2y2 7y3 3 2(x1)5(x4) 2 8 12 一、解方程。 5 xx16 9x9x5 2 x18.5x9x4.5x35632 9x x 20 4x7.5x70.572 8 x71111x x6.5x18 1 x1x4 x98x1 8 9 5 x5x x10x3x144 8 11x3x9x3 5y8.5y1.5y6 2y9.5y2y202 9x3x7 y65y4 7x(3x6)7x4(x1) 1 3 3 bbb26 2x3(x4)13(x1)2 8 8 2(x2)6x 3x3(6x8)83(x4) 54(x3)2