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15x+8=4x-8
We move all terms to the left:
15x+8-(4x-8)=0
We get rid of parentheses
15x-4x+8+8=0
We add all the numbers together, and all the variables
11x+16=0
We move all terms containing x to the left, all other terms to the right
11x=-16
x=-16/11
x=-1+5/11
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