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7=-11(m+7)-12
We move all terms to the left:
7-(-11(m+7)-12)=0
We calculate terms in parentheses: -(-11(m+7)-12), so:We get rid of parentheses
-11(m+7)-12
We multiply parentheses
-11m-77-12
We add all the numbers together, and all the variables
-11m-89
Back to the equation:
-(-11m-89)
11m+89+7=0
We add all the numbers together, and all the variables
11m+96=0
We move all terms containing m to the left, all other terms to the right
11m=-96
m=-96/11
m=-8+8/11
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