SOLUTION: a/4-7< -12

Question 312235: a/4-7< -12
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
a/4-7< -12
a/4<-12+7
a/4<-5
a<-5*4
a<-20 ans.
Proof:
Let a=-21
-21/4-7<-12
-21/4<-12+7
-21/4<-5
-5.25<-5
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