Question

Solve |x| + 7 < 4.


{x | x < -11 or x > -3}
{x | -3 < x < 3}
Ø

Answer 1

do we have a-d or do we just have to solve?

Answer 2

|x|+7<4
|x|<4-7
|x|<-3
when x>0
x<-3
when x<0
x>3
so
-3<x<3