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4(r-2)+6r=2(5r-4)
We move all terms to the left:
4(r-2)+6r-(2(5r-4))=0
We add all the numbers together, and all the variables
6r+4(r-2)-(2(5r-4))=0
We multiply parentheses
6r+4r-(2(5r-4))-8=0
We calculate terms in parentheses: -(2(5r-4)), so:We add all the numbers together, and all the variables
2(5r-4)
We multiply parentheses
10r-8
Back to the equation:
-(10r-8)
10r-(10r-8)-8=0
We get rid of parentheses
10r-10r+8-8=0
We add all the numbers together, and all the variables
=0
r=0/1
r=0
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