初二数学一元一次不等式专项练习题 123.docx

1、初二数学一元一次不等式专项练习题 1232x7 4x1 x7 5x6 3 3 3 8 6 3x198x20 2(7x4)9(4x20) x5 x3 x9 3x6 4 4 5 7 4 3x48x7 4(3x7)3(2x26) x8 2x7 9x1 x6 5 3 3 8 8 7x13(2x10) x4 2x2 7x2 x1 3 4 3 6 6 3x198x12 2(3x6)9(2x21) 7x1 x5 8x3 8x3 3 6 7 7 7 x164x30 6(9x5)7(4x25) 4x5 4x3 x7 x2 2 5 5 3 5 9x74x17 2(5x5) 2 6 5 4 7 x3010x13 4

2、(7x7)5(6x16) 4x2 7x3 x9 x6 2x11 4(3x6)5(2x20) 3x4 x1 x5 7x5 4x19 6(7x10) 3 7 3 7 4 7x262x9 2(7x4)5(10x19) x8 x6 6x3 6x8 8x23 4(9x9) 1 7 8 4 4 x32x23 2( x9)9(2x28) 5x9 x5 7x5 6x2 2 6 6 6 5 x2810x18 6(9x2)9(4x14) x7 x6 5x7 x3 6x14 4( x9)7(4x7) x1 x1 x7 5x5 1 4 8 6 4 7x12x23 4(5x7)3(2x10) x9 5x5 x6 4x5

3、 1 6 6 8 3 5x114x16 6(9x1) 3 3 4 8 4 3x26x1 6(7x8)5(10x3) 6x4 5x5 x8 3x2 6 5 4 8 4 7x135(4x27) 8x6 x1 x3 x5 4 7 4 7 5 5x222x8 8(9x1)9(4x25) 5x5 2x1 5x1 3x8 5 4 3 4 4 7x179(10x18) 5x4 x7 5x3 x5 3 4 3 4 5 9x142x25 2(9x2)5(2x7) x8 x1 x5 6x2 4 5 4 7 7 9x139(10x26) 4x5 6x5 4x4 4x7 10x18 4(3x7)7(8x17) 7x2

4、 x1 3x4 7x4 4 8 6 4 6 9x155(6x6) x9 4x7 x4 2x1 10x27 2(5x6)5(8x18) x9 6x8 4x1 7x2 3 5 7 3 8 x86x2 4(3x10)3(6x8) x5 x1 5x8 x2 6 4 6 4 8 3x309(2x14) 5x8 x7 8x4 x6 8x1 2( x6)7(8x25) x4 x7 7x6 3x4 2x6 6( x7) 2 8 4 7 8 7x248x6 6(3x6)7(10x20) 4x1 5x7 7x5 9x6 4 3 6 6 8 3x128x24 8( x8)9(2x19) 2x1 x2 x3 7x3

5、3 3 3 8 6 7x175(4x10) 8x7 6x7 7x3 4x3 5 7 7 6 3 3x169(10x16) x3 x7 x7 4x2 6 5 5 7 5 3x73(6x16) x3 5x9 x1 6x4 1 6 4 6 7 9x54x25 2(3x7)5(8x5) x8 4x3 x8 5x8 6 3 5 3 4 x304x12 4(3x8)7(2x12) 5x8 9x4 6x5 x1 3 4 8 5 7 5x192x11 2(3x4) 5 7 6 3 3 7x107(4x27) 4x2 9x2 x8 7x9 8x13 4( x7)7(6x2) 7x3 6x9 x3 4x4 4 8

6、 5 3 3 x35(8x3) 4x2 2x5 9x6 x6 2 3 3 8 4 3x1310x22 4(7x2) 8x22 8(3x2)3(2x4) x1 7x5 7x8 2x6 4 5 8 8 3 7x146x8 2(3x10) 4x10 4(7x5)7(2x8) x7 x1 x1 4x6 4x2 4(7x7)3(6x9) 4x8 x2 2x8 x8 1 5 8 3 5 9x287(8x3) x7 x8 6x6 6x5 10x9 2(9x3) 6 6 7 4 7 5x1310x18 2(5x6)9(10x11) 8x7 x5 x6 8x9 6x11 8( x1) 2 8 7 7 7 7x2

7、09(10x25) 3x9 7x3 7x4 x7 2 4 8 8 7 5x174x2 2(9x7)9(6x18) x2 5x1 x8 4x1 1 4 4 5 5 7x278x24 4( x4) 6 5 4 8 6 3x210x6 2(5x5)7(4x25) 2x1 6x6 4x4 x3 6 3 7 5 4 7x46x15 8( x4) 6x6 4(9x7) 3 7 8 3 6 x77(4x22) x8 7x1 5x1 x7 2 5 6 4 5 x163(6x4) 9x6 7x9 x7 x9 1 8 6 3 6 7x72x13 4(9x5) 2 4 6 5 6 7x15(10x4) 6x5 2x

8、2 x6 9x7 5 7 3 4 8 5x136x25 2(5x5)9(8x1) 7x8 6x3 5x3 6x1 6x9 4(7x2) 2 6 8 5 3 3x232x29 2(9x8)9(10x27) x9 x4 x9 x6 6 4 5 4 7 5x272x21 6(7x4)5(10x5) 9x6 6x2 x9 7x1 6 8 7 5 6 3x48x21 4( x2)5(2x23) x8 5x2 2x2 6x2 6x17 8(9x2) 6 6 5 8 7 3x410x15 6(7x3)3(6x7) x1 x6 3x1 x3 10x22 2( x9)7(2x28) x3 3x5 x2 7x8 1 7 4 3 8 9x3010x14 8(3x5)3(10x4) 2x1 5x8 5x8 x3 6 3 6 6 7 7x98x1 8(3x7) 2 8 3 8 4 5x310x13 4(5x1) 4x6 6(9x7)5(10x5) 5x4 5x6 2x3 4x4 5 6 6 3 3 3x38x8 6(7x10) 1 8 7 3 4