4is greater than 4(2-w) greater than -12

-4>4(2-w)>-12

-1>2-w>-3

-3>-w>-5

3<w<5

If you're wondering why the sign changes when we divided (or multiplied) by a negative value, let's give a simpler example:

-5<-2 -> -5 is less than -2. That  expression makes sense. Now multiply that by -1. You get 5<x<2. Does that make sense? No. When you switch the signs of everything, the sign will always get switched.

i used to know how to do this in 7th but i forget easily

step-by-step explanation: