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-82=-2x-5(x+8)
We move all terms to the left:
-82-(-2x-5(x+8))=0
We calculate terms in parentheses: -(-2x-5(x+8)), so:We get rid of parentheses
-2x-5(x+8)
We multiply parentheses
-2x-5x-40
We add all the numbers together, and all the variables
-7x-40
Back to the equation:
-(-7x-40)
7x+40-82=0
We add all the numbers together, and all the variables
7x-42=0
We move all terms containing x to the left, all other terms to the right
7x=42
x=42/7
x=6
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