Answer:
-x+120
Step-by-step explanation:
|x-120|=-(x-120)=-x+120,if x-120<0
or x<120
-120<120
Because i have no more information i assume you would like it to be solved.
x < -1 or -1/3 < x < 1
b
15 : 5 = 3 : 1
