18+2r=2(r+9)

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Solution for 18+2r=2(r+9) equation: 



18+2r=2(r+9)

We move all terms to the left:

18+2r-(2(r+9))=0



We calculate terms in parentheses: -(2(r+9)), so:

2(r+9)

We multiply parentheses

2r+18

Back to the equation:

-(2r+18)



We get rid of parentheses

2r-2r-18+18=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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