-21-3m=-5(m+7)

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Solution for -21-3m=-5(m+7) equation:


-21-3m=-5(m+7)

We simplify the equation to the form, which is simple to understand 
-21-3m=-5(m+7)

Reorder the terms in parentheses
-21-3m=+(-5m-35)

Remove unnecessary parentheses
-21-3m=-5m-35

We move all terms containing m to the left and all other terms to the right. 
-3m+5m=-35+21

We simplify left and right side of the equation. 
+2m=-14

We divide both sides of the equation by 2 to get m. 
m=-7

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