0.5x-13.2×

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0.5x-13.2×0.5x-13.2×0.5x-13.2×0.5x=6+66x=144

0.5x-13.2×
0.5x-13.2×

0.5x-13.2×
0.5x=6+66
x=144

0.5x-13.2× 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= x/0.5 求x:|x|-|x-4|=0.5x-1 X+0.5X=3 X-0.8X=8 250x - 2(x+50)(x+0.5)求x x/0.5+(60-x)/8 x+0.5x=30 X=12.8+0.5X x-0.5x=20, x+0.5x＝6 0.5X=X-9 60x+40*(x-0.5) x-0.5x=1.3