-287=7(8r-1)

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Solution for -287=7(8r-1) equation:



-287=7(8r-1)
We move all terms to the left:
-287-(7(8r-1))=0
We calculate terms in parentheses: -(7(8r-1)), so:
7(8r-1)
We multiply parentheses
56r-7
Back to the equation:
-(56r-7)
We get rid of parentheses
-56r+7-287=0
We add all the numbers together, and all the variables
-56r-280=0
We move all terms containing r to the left, all other terms to the right
-56r=280
r=280/-56
r=-5

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