20r+5r-9r+2=20

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Solution for 20r+5r-9r+2=20 equation: 



20r+5r-9r+2=20

We move all terms to the left:

20r+5r-9r+2-(20)=0

We add all the numbers together, and all the variables

16r-18=0

We move all terms containing r to the left, all other terms to the right

16r=18

r=18/16

r=1+1/8

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