SOLUTION: I don't really get this : | I tried every way but I see no answer 15<-5(x+1) thank you for helping :]

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Question 209136: I don't really get this : | I tried every way but I see no answer
15<-5(x+1)
thank you for helping :]
Found 2 solutions by rfer, MathTherapy:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
15=-5(x+1)
15=-5x-1
16=-5x
-x=3.2
x is less than -3.2

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
15<-5(x+1)

15 < -5x - 5
20 < -5x (Adding 5 to both sides of inequality)
20%2F-5+%3E+x (Dividing by - 5, which changes the inequality from < to >)
highlight_green%28-4+%3E+x%29, OR
highlight_green%28x+%3C+-+4%29

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Check
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Let x = - 5 (x < - 4)

Then 15<-5(x+1) = 15 < -5(-5 + 1) = 15 < - 5(- 4), OR

15 < 20 (TRUE)