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-8-7x=-2(4x+2)
We move all terms to the left:
-8-7x-(-2(4x+2))=0
We calculate terms in parentheses: -(-2(4x+2)), so:We get rid of parentheses
-2(4x+2)
We multiply parentheses
-8x-4
Back to the equation:
-(-8x-4)
-7x+8x+4-8=0
We add all the numbers together, and all the variables
x-4=0
We move all terms containing x to the left, all other terms to the right
x=4
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