|1+x|=0
1+x = 0
x = -1

|2-x|=0
2-x = 0
x = 2

|x-3|+0.5=0.5
|x-3| = 0
x-3 = 0
x = 3

|9+x|-0.7=-0.7
|9+x| = 0
9+x = 0
x = -9