240=-4(4-8r)

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Solution for 240=-4(4-8r) equation: 



240=-4(4-8r)

We move all terms to the left:

240-(-4(4-8r))=0

We add all the numbers together, and all the variables

-(-4(-8r+4))+240=0



We calculate terms in parentheses: -(-4(-8r+4)), so:

-4(-8r+4)

We multiply parentheses

32r-16

Back to the equation:

-(32r-16)



We get rid of parentheses

-32r+16+240=0

We add all the numbers together, and all the variables

-32r+256=0

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

-32r=-256

r=-256/-32

r=+8

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