7(r+2)=-5(-2r-7)

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Solution for 7(r+2)=-5(-2r-7) equation: 



7(r+2)=-5(-2r-7)

We move all terms to the left:

7(r+2)-(-5(-2r-7))=0

We multiply parentheses

7r-(-5(-2r-7))+14=0



We calculate terms in parentheses: -(-5(-2r-7)), so:

-5(-2r-7)

We multiply parentheses

10r+35

Back to the equation:

-(10r+35)



We get rid of parentheses

7r-10r-35+14=0

We add all the numbers together, and all the variables

-3r-21=0

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

-3r=21

r=21/-3

r=-7

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