110=9r+20

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Solution for 110=9r+20 equation: 



110=9r+20

We move all terms to the left:

110-(9r+20)=0

We get rid of parentheses

-9r-20+110=0

We add all the numbers together, and all the variables

-9r+90=0

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

-9r=-90

r=-90/-9

r=+10

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