# Absolute Value

## Lets review some basic concepts about absolute value.

The absolute value sign is | | with a number or expression between the signs.

For eample:
- |7| = 7
- |-7| = 7 The absolute value of a number is always positive. Why? Always try to solve the problem before looking at the answer.
answer

- |t| = 7 Therefore t = -7 or t = +7 Why? Always try to solve the problem before looking at the answer. answer

- |t + 4| = 12 What does t = ? Always try to solve the problem before looking at the answer. answer

- |r - 9| = 35 r = ? Always try to solve the problem before looking at the answer. answer

next absolute inequalities

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