3-2(0.2x+1)=0.
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3-2(0.2x+1)=0.3-2(0.2x+1)=0.3-2(0.2x+1)=0.3-2(0.2x+1)=0.2x3-0.4X-2=0.2X0.2X+0.4X=3-20.6X=1X=5/33-2(0
3-2(0.2x+1)=0.
3-2(0.2x+1)=0.
3-2(0.2x+1)=0.
3-2(0.2x+1)=0.2x
3-0.4X-2=0.2X
0.2X+0.4X=3-2
0.6X=1
X=5/3
3-2(0.2x+1)=0.2x
3-0. 4x-2=0. 2x (去括号)
3-0. 4x-2-0. 2x=0 (移项)
-0. 4x-0. 2x+3-2=0
-0. 6x+1=0
-0. 6x=-1
0. 6x=1
x=1÷0. 6
x=10÷6
x=5/3
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