3(m-4)=21.M=

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Solution for 3(m-4)=21.M= equation: 



3(m-4)=21.=

We move all terms to the left:

3(m-4)-(21.)=0

We add all the numbers together, and all the variables

3(m-4)-21=0

We multiply parentheses

3m-12-21=0

We add all the numbers together, and all the variables

3m-33=0

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

3m=33

m=33/3

m=11

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