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-34-8r=-3(6r+9)
We move all terms to the left:
-34-8r-(-3(6r+9))=0
We calculate terms in parentheses: -(-3(6r+9)), so:We get rid of parentheses
-3(6r+9)
We multiply parentheses
-18r-27
Back to the equation:
-(-18r-27)
-8r+18r+27-34=0
We add all the numbers together, and all the variables
10r-7=0
We move all terms containing r to the left, all other terms to the right
10r=7
r=7/10
r=7/10
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