Question

Solve -3 < 2x + 9 < 6.


1)4.5 < x < 5

2)-1 < x < 6

3)3 < x < 7.5

4)-6 < x < -1.5

Answer 1

Correct answer is 4.

You need to solve for x.
Subtract 9 from both sides of the inequality to get
-12<2x<-3.

Divide both sides of inequality to get
-6<x<-1.5

Answer 2

thanks!