-8m=-7-9m

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Solution for -8m=-7-9m equation: 



-8m=-7-9m

We move all terms to the left:

-8m-(-7-9m)=0

We add all the numbers together, and all the variables

-8m-(-9m-7)=0

We get rid of parentheses

-8m+9m+7=0

We add all the numbers together, and all the variables

m+7=0

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

m=-7

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