人教版七年级数学下册解一元一次不等式专项练习 278.docx

1、人教版七年级数学下册解一元一次不等式专项练习 2783x38x10 4(3x2)9(8x10) x1 5x9 x8 x1 3 7 6 4 6 7x278x1 8(3x8) 4 7 4 8 6 3x58x18 6(7x4)3(6x29) 6x9 x2 9x7 x8 4 5 5 8 4 5x179(8x10) x2 7x6 6x8 x1 2x1 6(5x5)3(8x11) 5x2 x6 x5 7x5 10x14 2(9x2)5(2x5) 4x3 2x3 3x5 x8 5 5 3 4 7 9x98x14 6(5x7) 4 4 4 4 4 x127(2x29) 4x5 x5 x2 8x2 5 5 3

2、7 7 5x42x18 2(7x5)7(4x29) x5 8x7 x1 7x6 4 6 7 7 8 7x77(8x6) 7x1 3x7 x2 6x9 10x14 8( x5)9(2x27) 4x5 x6 9x4 x4 4x20 2(3x2)3(8x17) x1 4x5 x7 8x2 2 6 5 6 7 7x44x20 6( x2)9(10x6) x2 7x5 3x7 6x2 5 8 6 4 5 5x283(10x12) 7x1 5x8 x8 x4 2 8 6 3 8 7x64x18 8( x1) 4 7 4 4 8 9x129(10x5) 4x2 9x5 9x1 x3 4 5 8 8 7 9x

3、86x19 8(7x2)7(6x12) x4 7x8 x4 x5 4 3 6 4 8 9x54x17 8(3x9)9(6x9) x1 8x3 2x1 x8 1 4 7 3 4 7x133(6x1) x9 4x1 x5 6x8 2 8 5 4 5 5x3010x27 4(7x4)5(6x26) 5x3 9x4 x1 x5 6x3 6(5x9)9(6x6) x4 x8 6x4 6x1 2 8 4 5 5 9x105(6x12) x3 8x2 7x7 6x9 6 6 7 6 7 x292x19 4(9x5)9(6x12) 5x5 x5 x6 5x6 1 6 8 4 6 5x114x11 8(9x10

4、) 4 4 3 8 5 7x134x7 6(3x2) 2 8 4 4 3 7x66x25 4(3x8)7(8x4) x6 x9 4x1 5x3 6 3 4 3 4 9x243(8x10) x3 5x3 x3 x4 4x1 4(5x7)9(4x5) 6x7 8x6 2x4 x2 10x30 8(7x4) 2 5 4 8 3 5x112x26 2(9x9) 2 3 8 5 6 x1910x3 2(3x7) 5 6 6 5 3 9x1610x22 4(3x4)9(8x29) x8 5x4 6x9 x8 8x25 6(9x3)3(8x19) 4x3 3x5 x3 7x7 5 3 4 3 6 3x98x

5、5 6(7x2)5(4x1) x5 9x2 6x1 x9 5 4 8 5 4 3x257(10x12) x4 4x6 3x3 8x1 6x18 8(9x1)9(8x5) 5x5 x6 5x5 x4 8x13 6(9x4)5(6x11) 8x5 6x3 5x6 x1 1 7 5 4 3 7x263(10x29) 4x3 3x8 x9 x2 6x27 6(9x1)5(2x3) x1 6x1 4x7 7x9 10x27 2(7x5)7(4x12) 5x5 8x7 3x6 x6 6 6 7 4 8 5x153(10x7) x6 3x7 5x6 8x3 5 3 4 6 7 x198x16 8(9x3)3(10x19) 6x2 x5 6x4 x6 10x18 8(3x9)7(4x20) x4 5x8 x2 9x3 4x24 6( x4)9(10x9) x5 x2 9x7 x1 2x16 4( x2)3(8x7) x3 7x6 x8 6x3 4x21 6(3x9)5(8x10) 4x6 x9 x2 4x3 4 3 6 3 5 x23(2x16) 5x3 7x2 5x5 7x3 2 6 6 4 6 3x2110x8 8(5x6)5(10x2)