SOLUTION: -9 + 4x < 2x - 3 Solve using the addition and multiplication principles.

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Question 275482: -9 + 4x < 2x - 3
Solve using the addition and multiplication principles.


Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
-9 + 4x < 2x - 3
-9+3<2X-4X
-6<-2X
-6/-2>X [NOTE THE SIGN CHANGES WHEN DIVIDING BY A NEGATIVE VALUE]
3>X ANS.
PROOF:
LET X=2.9
-9+4*2.9<2*2.9-3
-9+11.6<5.8-3
2.6<2.8