-9=-7+m/2

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



-9=-7+m/2

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(m/2-7)-9=0

We get rid of parentheses

-m/2+7-9=0

We multiply all the terms by the denominator


-m+7*2-9*2=0

We add all the numbers together, and all the variables

-1m-4=0

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

-m=4

m=4/-1

m=-4

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