x/90+2.5=x/50 怎么解
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x/90+2.5=x/50 怎么解
x/90+2.5=x/50 怎么解
x/90+2.5=x/50 怎么解
x/90+2.5=x/50
(x/90+2.5)*450=x/50*450
5x+1125=9x
1125=9x-5x
4x=1125
x=1125/4
x=281.25
5X+2.5×450=9X
4X=2.5×450
X=281.25
x/90+2.5=x/50 怎么解
x/90+2.5=x/50 怎么解
x/90+2.5=x/50 怎么解
x/90+2.5=x/50
(x/90+2.5)*450=x/50*450
5x+1125=9x
1125=9x-5x
4x=1125
x=1125/4
x=281.25
5X+2.5×450=9X
4X=2.5×450
X=281.25