408=8(7r-5)

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Solution for 408=8(7r-5) equation: 



408=8(7r-5)

We move all terms to the left:

408-(8(7r-5))=0



We calculate terms in parentheses: -(8(7r-5)), so:

8(7r-5)

We multiply parentheses

56r-40

Back to the equation:

-(56r-40)



We get rid of parentheses

-56r+40+408=0

We add all the numbers together, and all the variables

-56r+448=0

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

-56r=-448

r=-448/-56

r=+8

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