7+12m=-9+4m

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Solution for 7+12m=-9+4m equation: 



7+12m=-9+4m

We move all terms to the left:

7+12m-(-9+4m)=0

We add all the numbers together, and all the variables

12m-(4m-9)+7=0

We get rid of parentheses

12m-4m+9+7=0

We add all the numbers together, and all the variables

8m+16=0

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

8m=-16

m=-16/8

m=-2

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