-15m+20=-17m-20

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Solution for -15m+20=-17m-20 equation: 



-15m+20=-17m-20

We move all terms to the left:

-15m+20-(-17m-20)=0

We get rid of parentheses

-15m+17m+20+20=0

We add all the numbers together, and all the variables

2m+40=0

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

2m=-40

m=-40/2

m=-20

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