3m+5-7=-20

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Solution for 3m+5-7=-20 equation: 



3m+5-7=-20

We move all terms to the left:

3m+5-7-(-20)=0

We add all the numbers together, and all the variables

3m+18=0

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

3m=-18

m=-18/3

m=-6

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