20+8r=6(5r+7)

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Solution for 20+8r=6(5r+7) equation: 



20+8r=6(5r+7)

We move all terms to the left:

20+8r-(6(5r+7))=0



We calculate terms in parentheses: -(6(5r+7)), so:

6(5r+7)

We multiply parentheses

30r+42

Back to the equation:

-(30r+42)



We get rid of parentheses

8r-30r-42+20=0

We add all the numbers together, and all the variables

-22r-22=0

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

-22r=22

r=22/-22

r=-1

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