3(6-6r)=-90

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Solution for 3(6-6r)=-90 equation: 



3(6-6r)=-90

We move all terms to the left:

3(6-6r)-(-90)=0

We add all the numbers together, and all the variables

3(-6r+6)-(-90)=0

We add all the numbers together, and all the variables

3(-6r+6)+90=0

We multiply parentheses

-18r+18+90=0

We add all the numbers together, and all the variables

-18r+108=0

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

-18r=-108

r=-108/-18

r=+6

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