63=7(11+r)

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Solution for 63=7(11+r) equation: 



63=7(11+r)

We move all terms to the left:

63-(7(11+r))=0

We add all the numbers together, and all the variables

-(7(r+11))+63=0



We calculate terms in parentheses: -(7(r+11)), so:

7(r+11)

We multiply parentheses

7r+77

Back to the equation:

-(7r+77)



We get rid of parentheses

-7r-77+63=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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