9+R=2(4r-8)

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Solution for 9+R=2(4r-8) equation: 



9+=2(4R-8)

We move all terms to the left:

9+-(2(4R-8))=0

We add all the numbers together, and all the variables

-(2(4R-8))=0



We calculate terms in parentheses: -(2(4R-8)), so:

2(4R-8)

We multiply parentheses

8R-16

Back to the equation:

-(8R-16)



We get rid of parentheses

-8R+16=0

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

-8R=-16

R=-16/-8

R=+2

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