20+8r=5(4r+7)

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Solution for 20+8r=5(4r+7) equation: 



20+8r=5(4r+7)

We move all terms to the left:

20+8r-(5(4r+7))=0



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

5(4r+7)

We multiply parentheses

20r+35

Back to the equation:

-(20r+35)



We get rid of parentheses

8r-20r-35+20=0

We add all the numbers together, and all the variables

-12r-15=0

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

-12r=15

r=15/-12

r=-1+1/4

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