r-20=5(7r-4)

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Solution for r-20=5(7r-4) equation: 



r-20=5(7r-4)

We move all terms to the left:

r-20-(5(7r-4))=0



We calculate terms in parentheses: -(5(7r-4)), so:

5(7r-4)

We multiply parentheses

35r-20

Back to the equation:

-(35r-20)



We get rid of parentheses

r-35r+20-20=0

We add all the numbers together, and all the variables

-34r=0

r=0/-34

r=0

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