Write the following expressions without using absolute values.
(1) |b - 3| if ≥ 3
(2) |u - v|/|v - u| if u does not = v, u does not = 0 and v does not = 0.
(3) |a - 5| if a < 5
For #1 you are just considering when b is greater than or equal to 3. What do you notice about numbers that are bigger than 3? Try plugging in b=4,5,10 and so on. Do they all have the same sign? If so, does the absolute value change anything?