SOLUTION: Solve the inequality 1) 4(w-10)>4 New problem 2) -3x+9>18 solve the inequality

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Question 307536: Solve the inequality 1) 4(w-10)>4
New problem 2) -3x+9>18 solve the inequality
Answer by checkley77(12844) About Me  (Show Source):
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1) 4(w-10)>4
4W-40>4
4W>4+40
4W>44
W=44/4
W>11 ANS.
PROOF:
LET W=11.1
4(11.1-10)>4
4*1.1>4
4.4>4
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2) -3x+9>18
-3X>18-9
-3X>9
X<9/-3 NOTE THE SIGN CHANGE WHEN DIVIDING BY A NEGATIVE VALUE.
X<-3 ANS.
PROOF:
LET X=-3.1
-3*-3.1+9>18
9.3+9>18
18.3>18