-3(7r-7)=6-6r

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Solution for -3(7r-7)=6-6r equation: 



-3(7r-7)=6-6r

We move all terms to the left:

-3(7r-7)-(6-6r)=0

We add all the numbers together, and all the variables

-3(7r-7)-(-6r+6)=0

We multiply parentheses

-21r-(-6r+6)+21=0

We get rid of parentheses

-21r+6r-6+21=0

We add all the numbers together, and all the variables

-15r+15=0

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

-15r=-15

r=-15/-15

r=1

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