-m+8=4m-7

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



-m+8=4m-7

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1m-(4m-7)+8=0

We get rid of parentheses

-1m-4m+7+8=0

We add all the numbers together, and all the variables

-5m+15=0

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

-5m=-15

m=-15/-5

m=+3

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