18+7r=5r-6(3r+7)

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Solution for 18+7r=5r-6(3r+7) equation: 



18+7r=5r-6(3r+7)

We move all terms to the left:

18+7r-(5r-6(3r+7))=0



We calculate terms in parentheses: -(5r-6(3r+7)), so:

5r-6(3r+7)

We multiply parentheses

5r-18r-42

We add all the numbers together, and all the variables

-13r-42

Back to the equation:

-(-13r-42)



We get rid of parentheses

7r+13r+42+18=0

We add all the numbers together, and all the variables

20r+60=0

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

20r=-60

r=-60/20

r=-3

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