7r-7(7r+7)=-133

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Solution for 7r-7(7r+7)=-133 equation: 



7r-7(7r+7)=-133

We move all terms to the left:

7r-7(7r+7)-(-133)=0

We add all the numbers together, and all the variables

7r-7(7r+7)+133=0

We multiply parentheses

7r-49r-49+133=0

We add all the numbers together, and all the variables

-42r+84=0

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

-42r=-84

r=-84/-42

r=+2

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