Question

x is less than 3 units from -7 on the number line

Answer 1

x = (-10, -4)
-10 < x < -4

Answer 2

-7<x<-10

Answer 3

-10

Answer 4

x=-10

Answer 5

It can also be more than -7. The question only states that x is less than 3 UNITS from -7.
-4<x<-10

Answer 6

when we go to left from right the value of no. decreases so if x is less than -7 than it must be -10,if it we take x=-4 then its is wrong as -4<-7

Answer 7

-6 is only 1 UNIT away from -7 so it is LESS than 3 UNITS from -7.
I stand by my previous statement: -4<x<-10
The original problem never states that the x values has to be less than -7, just that it is less than 3 units from -7. There's a big different between the two.