7m-1=-9+8m

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Solution for 7m-1=-9+8m equation: 



7m-1=-9+8m

We move all terms to the left:

7m-1-(-9+8m)=0

We add all the numbers together, and all the variables

7m-(8m-9)-1=0

We get rid of parentheses

7m-8m+9-1=0

We add all the numbers together, and all the variables

-1m+8=0

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

-m=-8

m=-8/-1

m=+8

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