9(r+1)=-3(r+33)

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Solution for 9(r+1)=-3(r+33) equation: 



9(r+1)=-3(r+33)

We move all terms to the left:

9(r+1)-(-3(r+33))=0

We multiply parentheses

9r-(-3(r+33))+9=0



We calculate terms in parentheses: -(-3(r+33)), so:

-3(r+33)

We multiply parentheses

-3r-99

Back to the equation:

-(-3r-99)



We get rid of parentheses

9r+3r+99+9=0

We add all the numbers together, and all the variables

12r+108=0

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

12r=-108

r=-108/12

r=-9

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