-3(r+4)+-7=8

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Solution for -3(r+4)+-7=8 equation: 



-3(r+4)+-7=8

We move all terms to the left:

-3(r+4)+-7-(8)=0

determiningTheFunctionDomain
-3(r+4)-7-8+=0

We add all the numbers together, and all the variables

-3(r+4)=0

We multiply parentheses

-3r-12=0

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

-3r=12

r=12/-3

r=-4

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