3=r/20-5

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Solution for 3=r/20-5 equation:



3=r/20-5
We move all terms to the left:
3-(r/20-5)=0
We get rid of parentheses
-r/20+5+3=0
We multiply all the terms by the denominator
-r+5*20+3*20=0
We add all the numbers together, and all the variables
-1r+160=0
We move all terms containing r to the left, all other terms to the right
-r=-160
r=-160/-1
r=+160

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