0.5x-2.6=5.
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0.5x-2.6=5.
0.1x+0.5(27 x)=5.
2.6x-x-0.1x=0.75
0.5X+120+0.3X=X
4X+0.5X=13.5X
x-30-0.2x=0.5x
x-0.3x-0.5x=20
9x+0.5x+x=
360-x=2.6x
X+0.5X=3 X-0.8X=8
3.8x-x=5.
10x+7=12x-52.3x+17=3.5x3.1-3x=3/2x-3/44.3x-(4x-5)=6+(2-5x)5.-(1.5x+1)+2x=2(1.5x-1)6.5x+2(1-3x)=3(2-0.5x)
求x:|x|-|x-4|=0.5x-1
x+0.5x=30
X=12.8+0.5X
x-0.5x=20,
0.5X=X-9
x-0.5x=1.3