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-x-115=-8x+137
We move all terms to the left:
-x-115-(-8x+137)=0
We add all the numbers together, and all the variables
-1x-(-8x+137)-115=0
We get rid of parentheses
-1x+8x-137-115=0
We add all the numbers together, and all the variables
7x-252=0
We move all terms containing x to the left, all other terms to the right
7x=252
x=252/7
x=36
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