20+6r=8r-18

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Solution for 20+6r=8r-18 equation: 



20+6r=8r-18

We move all terms to the left:

20+6r-(8r-18)=0

We get rid of parentheses

6r-8r+18+20=0

We add all the numbers together, and all the variables

-2r+38=0

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

-2r=-38

r=-38/-2

r=+19

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