80/x=2.5×80/(x+2.5)
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80/x=2.5×80/(x+2.5)80/x=2.5×80/(x+2.5)80/x=2.5×80/(x+2.5)80/X=2.5x80/(X+2.5)80X+80*2.5=80*2.5X80(1.5
80/x=2.5×80/(x+2.5)
80/x=2.5×80/(x+2.5)
80/x=2.5×80/(x+2.5)
80/X=2.5x80/(X+2.5)
80X+80*2.5=80*2.5X
80(1.5X-2.5)=0
120X=200
X=5/3
80/x=2.5*80/(x+2.5)
120x=200
x=5/3
80/X=2.5x80/(X+2.5)
80X+80*2.5=80*2.5X
80(1.5X-2.5)=0
120X=200
X=5/3
80/x=2.5×80/(x+2.5)
3x=2.5X+80方程解3x=2.5x+80.
2.5x+x=10.25 这题解方程怎么算呀求求求!2.5x+x=10.25 75%x-80乘60%=1.286%x-0.6x=52
80+60%x=110 2.5x+2.5x=1.86 x-20%x=12求解
3x*x=1600+x*x-80x
80除以x=2.5×80除以x+2.5
80/x=2.5×80/(x+2.5)如何解
x+x-2.5+x-4=85
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x(120+x)*80％=x-76
60%X + 80%X - 12 = X
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80%x+30-x=10%x
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536-120%x-x=x-80
x-0.2x=80 求x
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80分之X=2.5*80分之X+2.