Answer:
v = ± 9
Step-by-step explanation:
The absolute value function always gives a positive result, however, the expression inside can be positive or negative, that is
| - a | = | a | = a
Given
| v | + 15 = 24 ( subtract 15 from both sides )
| v | = 9 , thus
v = ± 9
Answer:
v = +/- 9
Step-by-step explanation:
|v| + 15 = 24
we draw two equation:
v + 15 = 24 -v + 15 = 24
v = 24 - 15 15 - 24 = v
v = 9 -9 = v
hence v = +/- 9
note: |-v| = |v| = v.
