SOLUTION: please prove that if -3a+5<-16 then a>7

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Question 322387: please prove that if -3a+5<-16 then a>7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
-3a%2B5%3C-16+
-3a%2B5%3C-16<--- Subtract 5 from both sides
-3a%3C-21<--- Divide both sides by (-3). Change the direction of the inequality.
a%3E7