-4r-75=-9+-9(4r+-6)

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Solution for -4r-75=-9+-9(4r+-6) equation: 



-4r-75=-9+-9(4r+-6)

We move all terms to the left:

-4r-75-(-9+-9(4r+-6))=0

We add all the numbers together, and all the variables

-4r-(-9+-9(4r-6))-75=0

We use the square of the difference formula

-4r-(-9-9(4r-6))-75=0



We calculate terms in parentheses: -(-9-9(4r-6)), so:

-9-9(4r-6)

determiningTheFunctionDomain
-9(4r-6)-9

We multiply parentheses

-36r+54-9

We add all the numbers together, and all the variables

-36r+45

Back to the equation:

-(-36r+45)



We get rid of parentheses

-4r+36r-45-75=0

We add all the numbers together, and all the variables

32r-120=0

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

32r=120

r=120/32

r=3+3/4

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