-8m-16-15m=-20m-7

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Solution for -8m-16-15m=-20m-7 equation: 



-8m-16-15m=-20m-7

We move all terms to the left:

-8m-16-15m-(-20m-7)=0

We add all the numbers together, and all the variables

-23m-(-20m-7)-16=0

We get rid of parentheses

-23m+20m+7-16=0

We add all the numbers together, and all the variables

-3m-9=0

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

-3m=9

m=9/-3

m=-3

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