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5r-2(r+1)=1/4
We move all terms to the left:
5r-2(r+1)-(1/4)=0
We add all the numbers together, and all the variables
5r-2(r+1)-(+1/4)=0
We multiply parentheses
5r-2r-2-(+1/4)=0
We get rid of parentheses
5r-2r-2-1/4=0
We multiply all the terms by the denominator
5r*4-2r*4-1-2*4=0
We add all the numbers together, and all the variables
5r*4-2r*4-9=0
Wy multiply elements
20r-8r-9=0
We add all the numbers together, and all the variables
12r-9=0
We move all terms containing r to the left, all other terms to the right
12r=9
r=9/12
r=3/4
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