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0.4+4=0.2x+8
We move all terms to the left:
0.4+4-(0.2x+8)=0
We add all the numbers together, and all the variables
-(0.2x+8)+4.4=0
We get rid of parentheses
-0.2x-8+4.4=0
We add all the numbers together, and all the variables
-0.2x-3.6=0
We move all terms containing x to the left, all other terms to the right
-0.2x=3.6
x=3.6/-0.2
x=-18
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