7-m-7m=-13-4m

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Solution for 7-m-7m=-13-4m equation: 



7-m-7m=-13-4m

We move all terms to the left:

7-m-7m-(-13-4m)=0

We add all the numbers together, and all the variables

-m-7m-(-4m-13)+7=0

We add all the numbers together, and all the variables

-8m-(-4m-13)+7=0

We get rid of parentheses

-8m+4m+13+7=0

We add all the numbers together, and all the variables

-4m+20=0

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

-4m=-20

m=-20/-4

m=+5

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