3m+21+6m=180

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Solution for 3m+21+6m=180 equation: 



3m+21+6m=180

We move all terms to the left:

3m+21+6m-(180)=0

We add all the numbers together, and all the variables

9m-159=0

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

9m=159

m=159/9

m=17+2/3

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