-117=3(1+8r)

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Solution for -117=3(1+8r) equation:



-117=3(1+8r)
We move all terms to the left:
-117-(3(1+8r))=0
We add all the numbers together, and all the variables
-(3(8r+1))-117=0
We calculate terms in parentheses: -(3(8r+1)), so:
3(8r+1)
We multiply parentheses
24r+3
Back to the equation:
-(24r+3)
We get rid of parentheses
-24r-3-117=0
We add all the numbers together, and all the variables
-24r-120=0
We move all terms containing r to the left, all other terms to the right
-24r=120
r=120/-24
r=-5

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