7m-3m=-4

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Solution for 7m-3m=-4 equation: 



7m-3m=-4

We move all terms to the left:

7m-3m-(-4)=0

We add all the numbers together, and all the variables

4m+4=0

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

4m=-4

m=-4/4

m=-1

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