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120=-8(2+x)
We move all terms to the left:
120-(-8(2+x))=0
We add all the numbers together, and all the variables
-(-8(x+2))+120=0
We calculate terms in parentheses: -(-8(x+2)), so:We get rid of parentheses
-8(x+2)
We multiply parentheses
-8x-16
Back to the equation:
-(-8x-16)
8x+16+120=0
We add all the numbers together, and all the variables
8x+136=0
We move all terms containing x to the left, all other terms to the right
8x=-136
x=-136/8
x=-17
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