90=5(4r-6)

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Solution for 90=5(4r-6) equation: 



90=5(4r-6)

We move all terms to the left:

90-(5(4r-6))=0



We calculate terms in parentheses: -(5(4r-6)), so:

5(4r-6)

We multiply parentheses

20r-30

Back to the equation:

-(20r-30)



We get rid of parentheses

-20r+30+90=0

We add all the numbers together, and all the variables

-20r+120=0

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

-20r=-120

r=-120/-20

r=+6

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