Question 792258
|x + 9| < 2
x + 9 = 2
x + 9 - 9 = 2 - 9
x < -7
x must be less than -7
check:
|-7 + 9| < 2
|2| < 2
2 = 2  wrong 

|-8 + 9| < 2
|1| < 2
1 < 2  right