138=(5r-3)+4r

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Solution for 138=(5r-3)+4r equation: 



138=(5r-3)+4r

We move all terms to the left:

138-((5r-3)+4r)=0



We calculate terms in parentheses: -((5r-3)+4r), so:

(5r-3)+4r

We add all the numbers together, and all the variables

4r+(5r-3)

We get rid of parentheses

4r+5r-3

We add all the numbers together, and all the variables

9r-3

Back to the equation:

-(9r-3)



We get rid of parentheses

-9r+3+138=0

We add all the numbers together, and all the variables

-9r+141=0

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

-9r=-141

r=-141/-9

r=15+2/3

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