13m+4=9m-8

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Solution for 13m+4=9m-8 equation: 



13m+4=9m-8

We move all terms to the left:

13m+4-(9m-8)=0

We get rid of parentheses

13m-9m+8+4=0

We add all the numbers together, and all the variables

4m+12=0

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

4m=-12

m=-12/4

m=-3

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