SOLUTION: 5y+7-7y is less than or equal to 13

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Question 247596: 5y+7-7y is less than or equal to 13
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
5y+7-7y<=13
-2Y<=13-7
-2Y<=6
Y>=6/-2 NOTE THE < SIGN CHANGES TO A > SIGN WHENEVER YOU DIVIDE BY A NEGATIVE VALUE.
Y>=-3 ANS.
PROOF:
LET Y=-2.9
5*-2.9+7-7*-2.9<=13
-14.5+7+20.3<=13
12.8<=13