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-2(m+7)+m=70
We simplify the equation to the form, which is simple to understand
-2(m+7)+m=70
Reorder the terms in parentheses
+(-2m-14)+m=70
Remove unnecessary parentheses
-2m-14+m=+70
We move all terms containing m to the left and all other terms to the right.
-2m+1m=+70+14
We simplify left and right side of the equation.
-1m=+84
We divide both sides of the equation by -1 to get m.
m=-84
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