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-8x-116=-15x-179
We move all terms to the left:
-8x-116-(-15x-179)=0
We get rid of parentheses
-8x+15x+179-116=0
We add all the numbers together, and all the variables
7x+63=0
We move all terms containing x to the left, all other terms to the right
7x=-63
x=-63/7
x=-9
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