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m+7-4m=-13+2m
We simplify the equation to the form, which is simple to understand
m+7-4m=-13+2m
We move all terms containing m to the left and all other terms to the right.
+1m-4m-2m=-13-7
We simplify left and right side of the equation.
-5m=-20
We divide both sides of the equation by -5 to get m.
m=4
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