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3(6r-5)+2r=3(r+5)-5r
We move all terms to the left:
3(6r-5)+2r-(3(r+5)-5r)=0
We add all the numbers together, and all the variables
2r+3(6r-5)-(3(r+5)-5r)=0
We multiply parentheses
2r+18r-(3(r+5)-5r)-15=0
We calculate terms in parentheses: -(3(r+5)-5r), so:We add all the numbers together, and all the variables
3(r+5)-5r
We add all the numbers together, and all the variables
-5r+3(r+5)
We multiply parentheses
-5r+3r+15
We add all the numbers together, and all the variables
-2r+15
Back to the equation:
-(-2r+15)
20r-(-2r+15)-15=0
We get rid of parentheses
20r+2r-15-15=0
We add all the numbers together, and all the variables
22r-30=0
We move all terms containing r to the left, all other terms to the right
22r=30
r=30/22
r=1+4/11
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