4x-13>2x+154x-2x> 15+13 2x> 28 x > 28/2 x> 142(x+1)>5(x-2)2x+2 >5x-102x-5x> -10-2 -3x> -12 x < 12/3 x< 42-3x《9-4x-3x+4x《9-2 x 《 7x+5《13x 《13-5x《83x+6>6x-123x-6x > -12-6-3x> -18 x< 18/3 x< 6
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4x-13>2x+15
4x-2x> 15+13
2x> 28
x > 28/2
x> 14
2(x+1)>5(x-2)
2x+2 >5x-10
2x-5x> -10-2
-3x> -12
x < 12/3
x< 4
2-3x《9-4x
-3x+4x《9-2
x 《 7
x+5《13
x 《13-5
x《8
3x+6>6x-12
3x-6x > -12-6
-3x> -18
x< 18/3
x< 6