7m+8=9m-2

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Solution for 7m+8=9m-2 equation: 



7m+8=9m-2

We move all terms to the left:

7m+8-(9m-2)=0

We get rid of parentheses

7m-9m+2+8=0

We add all the numbers together, and all the variables

-2m+10=0

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

-2m=-10

m=-10/-2

m=+5

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