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-6r-4=4(5r-1)
We move all terms to the left:
-6r-4-(4(5r-1))=0
We calculate terms in parentheses: -(4(5r-1)), so:We get rid of parentheses
4(5r-1)
We multiply parentheses
20r-4
Back to the equation:
-(20r-4)
-6r-20r+4-4=0
We add all the numbers together, and all the variables
-26r=0
r=0/-26
r=0
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