R=2n+(-300)

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Solution for R=2n+(-300) equation: 



=2R+(-300)

We move all terms to the left:

-(2R+(-300))=0



We calculate terms in parentheses: -(2R+(-300)), so:

2R+(-300)

We add all the numbers together, and all the variables

2R-300

Back to the equation:

-(2R-300)



We get rid of parentheses

-2R+300=0

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

-2R=-300

R=-300/-2

R=+150

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