3m+20=-m-20

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



3m+20=-m-20

We move all terms to the left:

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

We add all the numbers together, and all the variables

3m-(-1m-20)+20=0

We get rid of parentheses

3m+1m+20+20=0

We add all the numbers together, and all the variables

4m+40=0

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

4m=-40

m=-40/4

m=-10

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