256=8(8-3r)

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Solution for 256=8(8-3r) equation: 



256=8(8-3r)

We move all terms to the left:

256-(8(8-3r))=0

We add all the numbers together, and all the variables

-(8(-3r+8))+256=0



We calculate terms in parentheses: -(8(-3r+8)), so:

8(-3r+8)

We multiply parentheses

-24r+64

Back to the equation:

-(-24r+64)



We get rid of parentheses

24r-64+256=0

We add all the numbers together, and all the variables

24r+192=0

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

24r=-192

r=-192/24

r=-8

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