-77=7(r-7)-14

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Solution for -77=7(r-7)-14 equation: 



-77=7(r-7)-14

We move all terms to the left:

-77-(7(r-7)-14)=0



We calculate terms in parentheses: -(7(r-7)-14), so:

7(r-7)-14

We multiply parentheses

7r-49-14

We add all the numbers together, and all the variables

7r-63

Back to the equation:

-(7r-63)



We get rid of parentheses

-7r+63-77=0

We add all the numbers together, and all the variables

-7r-14=0

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

-7r=14

r=14/-7

r=-2

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