SOLUTION: I do not understand how to solve this problem :-12=5r+8. No matter how I try, I don't understand the concept. Can you help? muchie367@yahoo.com

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: I do not understand how to solve this problem :-12=5r+8. No matter how I try, I don't understand the concept. Can you help? muchie367@yahoo.com      Log On


   

Question 257568: I do not understand how to solve this problem :-12=5r+8. No matter how I try, I don't understand the concept. Can you help? muchie367@yahoo.com
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
-12=5r+8
take -8 from both sides
-20=5r
divide both sides by 5
-4=r