8m+7=9m+8

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



8m+7=9m+8

We move all terms to the left:

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

We get rid of parentheses

8m-9m-8+7=0

We add all the numbers together, and all the variables

-1m-1=0

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

-m=1

m=1/-1

m=-1

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