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4+4x=2x-31
We move all terms to the left:
4+4x-(2x-31)=0
We get rid of parentheses
4x-2x+31+4=0
We add all the numbers together, and all the variables
2x+35=0
We move all terms containing x to the left, all other terms to the right
2x=-35
x=-35/2
x=-17+1/2
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