3m+15=-8m-7

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Solution for 3m+15=-8m-7 equation: 



3m+15=-8m-7

We move all terms to the left:

3m+15-(-8m-7)=0

We get rid of parentheses

3m+8m+7+15=0

We add all the numbers together, and all the variables

11m+22=0

We move all terms containing m to the left, all other terms to the right

11m=-22

m=-22/11

m=-2

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