9m-3(m-3)=81

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Solution for 9m-3(m-3)=81 equation: 



9m-3(m-3)=81

We move all terms to the left:

9m-3(m-3)-(81)=0

We multiply parentheses

9m-3m+9-81=0

We add all the numbers together, and all the variables

6m-72=0

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

6m=72

m=72/6

m=12

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