x=120+(x ×0.2)
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x=120+(x×0.2)x=120+(x×0.2)x=120+(x×0.2)x=120+(x×0.2)0.8x=120x=150150x=120+(x×0.2)解:移项得x-0.2x=120合并得0
x=120+(x ×0.2)
x=120+(x ×0.2)
x=120+(x ×0.2)
x=120+(x ×0.2)
0.8x=120
x=150
150
x=120+(x×0.2)
解:移项得
x-0.2x=120
合并得
0.8x=120
解得
x=150
x=120+(x×0.2)
解∶x=120+0.2x
0.8x=120
x=150
x=120+(x ×0.2)
(X/15+120)/(X+120)=0.2
(0.2-x)(500-100x)=120
(X+X)+(X-X)+(X*X)+(X/X)=100
x-30-0.2x=0.5x
x-0.2x=80 求x
x(120+x)*80%=x-76
x(x+1)(x-1)=120
x-x/4-120=x/2
0.5X+120+0.3X=X
x/(120-x)=x/60
x/(120-x)=(60-x)/60
25%X+三分之一X+120=X
536-120%x-x=x-80
(X-8)/X=0.2(X-8)/X=0.2
(x-1)+(x+2)+0.2x+2x=46
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