2r+(-8r)+18r-(-8)=20

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Solution for 2r+(-8r)+18r-(-8)=20 equation: 



2r+(-8r)+18r-(-8)=20

We move all terms to the left:

2r+(-8r)+18r-(-8)-(20)=0

determiningTheFunctionDomain
2r+(-8r)+18r-20-(-8)=0

We add all the numbers together, and all the variables

20r+(-8r)-12=0

We get rid of parentheses

20r-8r-12=0

We add all the numbers together, and all the variables

12r-12=0

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

12r=12

r=12/12

r=1

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