-9=6-8m-7m

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Solution for -9=6-8m-7m equation: 



-9=6-8m-7m

We move all terms to the left:

-9-(6-8m-7m)=0

We add all the numbers together, and all the variables

-(-15m+6)-9=0

We get rid of parentheses

15m-6-9=0

We add all the numbers together, and all the variables

15m-15=0

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

15m=15

m=15/15

m=1

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