4(r+7)=(r+9)

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Solution for 4(r+7)=(r+9) equation: 



4(r+7)=(r+9)

We move all terms to the left:

4(r+7)-((r+9))=0

We multiply parentheses

4r-((r+9))+28=0



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

(r+9)

We get rid of parentheses

r+9

Back to the equation:

-(r+9)



We get rid of parentheses

4r-r-9+28=0

We add all the numbers together, and all the variables

3r+19=0

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

3r=-19

r=-19/3

r=-6+1/3

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