SOLUTION: hey i really need help -5a+9>24

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Question 267347: hey i really need help -5a+9>24
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
-5a+9>24
-5a>24-9
-5a>15
a<15/-5
a<-3 ans.
Proof:
Let a=-3.1
-5*-3.1+9>24
15.5+9>24
24.5>24