-200=8(-1-4r)

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Solution for -200=8(-1-4r) equation: 



-200=8(-1-4r)

We move all terms to the left:

-200-(8(-1-4r))=0

We add all the numbers together, and all the variables

-(8(-4r-1))-200=0



We calculate terms in parentheses: -(8(-4r-1)), so:

8(-4r-1)

We multiply parentheses

-32r-8

Back to the equation:

-(-32r-8)



We get rid of parentheses

32r+8-200=0

We add all the numbers together, and all the variables

32r-192=0

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

32r=192

r=192/32

r=6

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