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4x-31=-3+x
We move all terms to the left:
4x-31-(-3+x)=0
We add all the numbers together, and all the variables
4x-(x-3)-31=0
We get rid of parentheses
4x-x+3-31=0
We add all the numbers together, and all the variables
3x-28=0
We move all terms containing x to the left, all other terms to the right
3x=28
x=28/3
x=9+1/3
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