R=5x+3(x+15)

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Solution for R=5x+3(x+15) equation: 



=5R+3(R+15)

We move all terms to the left:

-(5R+3(R+15))=0



We calculate terms in parentheses: -(5R+3(R+15)), so:

5R+3(R+15)

We multiply parentheses

5R+3R+45

We add all the numbers together, and all the variables

8R+45

Back to the equation:

-(8R+45)



We get rid of parentheses

-8R-45=0

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

-8R=45

R=45/-8

R=-5+5/8

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