5r-1=7(r-7)

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Solution for 5r-1=7(r-7) equation: 



5r-1=7(r-7)

We move all terms to the left:

5r-1-(7(r-7))=0



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

7(r-7)

We multiply parentheses

7r-49

Back to the equation:

-(7r-49)



We get rid of parentheses

5r-7r+49-1=0

We add all the numbers together, and all the variables

-2r+48=0

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

-2r=-48

r=-48/-2

r=+24

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