7r+18=5(r-4)

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Solution for 7r+18=5(r-4) equation: 



7r+18=5(r-4)

We move all terms to the left:

7r+18-(5(r-4))=0



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

5(r-4)

We multiply parentheses

5r-20

Back to the equation:

-(5r-20)



We get rid of parentheses

7r-5r+20+18=0

We add all the numbers together, and all the variables

2r+38=0

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

2r=-38

r=-38/2

r=-19

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