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8x=4x-13
We move all terms to the left:
8x-(4x-13)=0
We get rid of parentheses
8x-4x+13=0
We add all the numbers together, and all the variables
4x+13=0
We move all terms containing x to the left, all other terms to the right
4x=-13
x=-13/4
x=-3+1/4
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