4r+9=-7(-6+r)

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Solution for 4r+9=-7(-6+r) equation: 



4r+9=-7(-6+r)

We move all terms to the left:

4r+9-(-7(-6+r))=0

We add all the numbers together, and all the variables

4r-(-7(r-6))+9=0



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

-7(r-6)

We multiply parentheses

-7r+42

Back to the equation:

-(-7r+42)



We get rid of parentheses

4r+7r-42+9=0

We add all the numbers together, and all the variables

11r-33=0

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

11r=33

r=33/11

r=3

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