X-X×0.2=1.18
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X-X×0.2=1.18
X-X×0.2=1.18
X-X×0.2=1.18
当然能算出来
X-X×0.2=1.18
(1-0.2)X=1.18
0.8X=1.18
解得X=1.475
X-X×0.2=1.18
(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
x-0.2.x=180
x-0.2x=36
x=120+(x ×0.2)
x*x*x*x*x=80000?
0.2x+0.4x=12 x=?20x+x=420 x=?
x*x*x=504 x*x*x=504
(x+x)+(x-x)+(x/x)=11.2
1.18-2(3-4X)=10X2.X/2-X=(X+5)-2X
f(x)=x,x
x+x=x+15
X(X-1)=X
180=( )x( )x( )x( ) ×( )