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30=-2(m-7)+m
We simplify the equation to the form, which is simple to understand
30=-2(m-7)+m
Reorder the terms in parentheses
30=+(-2m+14)+m
Remove unnecessary parentheses
+30=-2m+14+m
We move all terms containing m to the left and all other terms to the right.
+2m-1m=+14-30
We simplify left and right side of the equation.
+1m=-16
We divide both sides of the equation by 1 to get m.
m=-16
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