-1+8m=-9+7m

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



-1+8m=-9+7m

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

8m-7m+9-1=0

We add all the numbers together, and all the variables

m+8=0

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

m=-8

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