7m+20=5m-20

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



7m+20=5m-20

We move all terms to the left:

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

We get rid of parentheses

7m-5m+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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