-189=3(7m-7)

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Solution for -189=3(7m-7) equation: 



-189=3(7m-7)

We move all terms to the left:

-189-(3(7m-7))=0



We calculate terms in parentheses: -(3(7m-7)), so:

3(7m-7)

We multiply parentheses

21m-21

Back to the equation:

-(21m-21)



We get rid of parentheses

-21m+21-189=0

We add all the numbers together, and all the variables

-21m-168=0

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

-21m=168

m=168/-21

m=-8

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