5(r+3)=9(r+4)

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Solution for 5(r+3)=9(r+4) equation: 



5(r+3)=9(r+4)

We move all terms to the left:

5(r+3)-(9(r+4))=0

We multiply parentheses

5r-(9(r+4))+15=0



We calculate terms in parentheses: -(9(r+4)), so:

9(r+4)

We multiply parentheses

9r+36

Back to the equation:

-(9r+36)



We get rid of parentheses

5r-9r-36+15=0

We add all the numbers together, and all the variables

-4r-21=0

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

-4r=21

r=21/-4

r=-5+1/4

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