92=5r+4(4r+2)

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Solution for 92=5r+4(4r+2) equation: 



92=5r+4(4r+2)

We move all terms to the left:

92-(5r+4(4r+2))=0



We calculate terms in parentheses: -(5r+4(4r+2)), so:

5r+4(4r+2)

We multiply parentheses

5r+16r+8

We add all the numbers together, and all the variables

21r+8

Back to the equation:

-(21r+8)



We get rid of parentheses

-21r-8+92=0

We add all the numbers together, and all the variables

-21r+84=0

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

-21r=-84

r=-84/-21

r=+4

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