3m+21=28

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Solution for 3m+21=28 equation: 



3m+21=28

We move all terms to the left:

3m+21-(28)=0

We add all the numbers together, and all the variables

3m-7=0

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

3m=7

m=7/3

m=2+1/3

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