x/(1-40%)=3.6
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x/(1-40%)=3.6x/(1-40%)=3.6x/(1-40%)=3.6x/(1-40%)=3.6x/60%=3.6x=3.6*60%x=5.16x÷(1-40%)=3.6=x÷60％=3.6x
x/(1-40%)=3.6
x/(1-40%)=3.6
x/(1-40%)=3.6
x/(1-40%)=3.6
x/60%=3.6
x=3.6*60%
x=5.16
x÷(1-40%)=3.6=x÷60％=3.6x=3.6×0.6=2.16
x/(1-40%)=3.6
x/(1-40%)=3.6
解方程 x-1%x=19.8x-40%x=15x+25%x=2.550%x+x=31.5x-15%x=8.5
(1十40%）X乘0.8-X=3.6
X(X-1)=X
解分式方程：1/X-2+1/X-6=1/X-7+1/X-11/X-2+1/X-6=1/X-7+1/X-11/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)(x-1-x+2)/(x-2)(x-1)=(x-6-x+7)/(x-7)(x-6)1/(x-2)(x-1)=1/(x-7)(x-6)(x-2)(x-1)=(x-7)(x-6)x^2-3x+2=x^2-13x+4213x-3x=42-210x=40x=4 为什么要移向才能解
(x+40)/60-x/40=1+0.5,x=?
5x-1/2x=3.6
3.6x+6.4x=1
3.6x十6.4x=1
(1-x)(400+40x)=300x=?
x*(1+40/100)*0.8-x=15 X=?
x/40+x/50=1+1/200*x
解方程：x-40%x+12=x-1/4
x-1/5x-40%x=20 怎么解
解方程；x-1/3x-40%x=100
X-40%X-1/3X=15求算式
X-40%X-1/3X=15