3(m-7)=3m-21

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Solution for 3(m-7)=3m-21 equation: 



3(m-7)=3m-21

We move all terms to the left:

3(m-7)-(3m-21)=0

We multiply parentheses

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

We get rid of parentheses

3m-3m+21-21=0

We add all the numbers together, and all the variables

=0

m=0/1

m=0

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