x-0.2x=36

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x-0.2x=36
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x-0.2x=36
x-0.2x=36

x-0.2x=36
x-0.2x=36
（1-0.2）x=36
0.8x=36
0.8x÷0.8=36÷0.8
x=45

0.8x=36
8x=360
x=45

0.8x=36
x=45

x-0.2x=36 x-0.2x-4=36 x-0.2x+4=36 0.2x-25%x=36 （X+X)+(X-X)+(X*X)+(X/X)=100 x-30-0.2x=0.5x x-0.2x=80 求x (X-8)/X=0.2(X-8)/X=0.2 (x-1)+(x+2)+0.2x+2x=46 10x -6.2x-2x=36 x=? 10x+(10-x)-36=10(10-x)+x x+2x×10=10x+2x+36 解方程：（x+2)(x+2)-x*x=36 (X/10)(X/10)=(6-X*X)/36 x*x+2*x+1=36,x怎么解, X-X×0.2=1.18 x-0.2.x=180 x=120+(x ×0.2)