13-8m=-4m-7

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Solution for 13-8m=-4m-7 equation: 



13-8m=-4m-7

We move all terms to the left:

13-8m-(-4m-7)=0

We get rid of parentheses

-8m+4m+7+13=0

We add all the numbers together, and all the variables

-4m+20=0

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

-4m=-20

m=-20/-4

m=+5

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