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13x-5=3x+31
We move all terms to the left:
13x-5-(3x+31)=0
We get rid of parentheses
13x-3x-31-5=0
We add all the numbers together, and all the variables
10x-36=0
We move all terms containing x to the left, all other terms to the right
10x=36
x=36/10
x=3+3/5
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