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-92=-4(2x+7)
We move all terms to the left:
-92-(-4(2x+7))=0
We calculate terms in parentheses: -(-4(2x+7)), so:We get rid of parentheses
-4(2x+7)
We multiply parentheses
-8x-28
Back to the equation:
-(-8x-28)
8x+28-92=0
We add all the numbers together, and all the variables
8x-64=0
We move all terms containing x to the left, all other terms to the right
8x=64
x=64/8
x=8
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