90+3m+m=180

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Solution for 90+3m+m=180 equation: 



90+3m+m=180

We move all terms to the left:

90+3m+m-(180)=0

We add all the numbers together, and all the variables

4m-90=0

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

4m=90

m=90/4

m=22+1/2

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