人教版七年级数学下册解一元一次不等式专项练习 281.docx

1、人教版七年级数学下册解一元一次不等式专项练习 281x6 6x6 7x1 4x6 1 8 7 6 5 3x272x28 8(7x9)5(6x9) 4x2 x9 x8 x9 6 3 6 6 8 9x109(2x20) 8x6 8x9 4x6 2x7 6x5 6(3x4)3(4x21) 6x7 4x2 7x8 8x7 6 5 3 6 7 5x43(8x15) x1 6x7 x4 6x3 4 3 7 7 5 3x223(4x6) 6x1 5x6 x9 x8 6x17 4(5x4)5(10x2) x2 4x8 8x7 7x7 3 6 3 7 6 3x254x26 2( x9) 1 8 7 4 5 9x

2、310x14 2(5x5) 4 7 4 6 5 5x259(10x17) 4x7 x2 x7 x8 6x15 4(7x3)3(6x27) x5 6x9 3x5 8x2 2 5 5 4 7 7x138x27 6(7x9) 10x7 2( x3) 4 6 4 8 4 9x306x20 8(9x9) 4x6 6(9x2)9(8x1) 5x8 x6 3x6 x3 4 6 7 4 7 7x205(6x14) x6 6x5 4x7 x4 4 3 7 3 7 7x1810x22 2(5x2)9(2x6) 9x5 2x5 x4 5x8 5 8 3 4 6 5x52x20 6(5x5)5(6x17) x4 8x

3、5 x7 7x9 2 6 7 7 6 5x177(8x15) x8 5x9 x9 4x9 4 7 4 4 5 9x38x4 6(9x6)5(4x1) x5 x8 x3 7x2 6 3 5 7 6 x810x4 4( x8)3(8x29) x2 x1 x9 5x1 4 3 8 7 4 x242x28 2(9x6)9(10x23) x1 x5 8x4 x5 5 8 8 7 8 3x162x4 4( x4)7(10x14) x6 3x4 8x4 x7 1 5 4 7 7 x127(10x28) 6x7 6x7 9x3 x6 2 7 7 8 8 x2910x3 4(3x6) 4 4 3 5 8 7x1

4、96x20 2(7x7) 3 4 6 8 5 5x257(4x11) x1 8x2 x1 x4 6 5 7 8 8 9x39(8x25) 5x4 9x2 4x2 3x2 3 6 8 5 4 x249(2x30) 5x3 4x5 7x9 6x3 6x7 8( x10)9(8x10) 6x4 x4 6x8 x2 5 7 6 5 6 9x103(10x11) 3x3 5x6 x2 x4 3 4 4 3 4 5x74x21 4(7x10)5(2x19) 7x2 x6 3x6 x7 3 8 6 4 8 7x84x11 2( x4)9(4x11) 9x3 x1 x7 7x7 4 8 7 5 6 5x163

5、(2x26) 3x7 5x1 4x6 6x8 3 4 6 3 7 9x38x27 6( x10)7(8x1) x5 5x2 x6 6x7 5 8 6 4 5 x166x2 8(7x2)7(8x23) 7x4 5x6 x3 5x4 2x17 2(9x3)3(4x7) 8x5 6x5 5x5 3x3 4 7 5 4 4 9x178x16 4(3x2)9(6x20) 2x8 x7 x6 2x1 1 3 6 8 3 9x117(10x23) 4x8 x6 x9 5x1 2 3 5 3 4 7x1910x29 4(5x3)7(6x1) 7x3 x2 9x5 x8 6 8 5 8 8 x163(8x21) x6 x4 x9 3x7 5 8 3 8 4 x199(4x13) x5 x5 6x7 5x3 5 7 6 7 6 x1210x16 4(7x6)9(6x30) x7 6x5 x2 7x6 3 3 7 7 6 3x204x26 4( x7) 6 6 8 3 7 x138x22 6(7x2) 6 6 8 5 3 5x233(4x14) 4x9 x7 x1 x3 4x15 8( x7) 8x27 4( x4)9(4x22) x5 x8 3x3 9x5 6 7 8 4 8