-264=-8(3+5r)

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Solution for -264=-8(3+5r) equation: 



-264=-8(3+5r)

We move all terms to the left:

-264-(-8(3+5r))=0

We add all the numbers together, and all the variables

-(-8(5r+3))-264=0



We calculate terms in parentheses: -(-8(5r+3)), so:

-8(5r+3)

We multiply parentheses

-40r-24

Back to the equation:

-(-40r-24)



We get rid of parentheses

40r+24-264=0

We add all the numbers together, and all the variables

40r-240=0

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

40r=240

r=240/40

r=6

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