-4=m+9

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Solution for -4=m+9 equation: 



-4=m+9

We move all terms to the left:

-4-(m+9)=0

We get rid of parentheses

-m-9-4=0

We add all the numbers together, and all the variables

-1m-13=0

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

-m=13

m=13/-1

m=-13

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