en.wikipedia.org/wiki/Absolute_value

In mathematics, the **absolute value** or modulus |x| of a real number x is the non-
negative value of x without regard to its sign. Namely, |x| = x for a positive x, |x| ...

www.mathsisfun.com/numbers/absolute-value.html

More Examples: The **absolute value** of −9 is 9; The **absolute value** of 3 is 3; The
**absolute value** of 0 is 0; The **absolute value** of −156 is 156 ...

www.khanacademy.org/math/algebra-basics/basic-alg-foundations/alg-basics-absolute-value-new/v/absolute-value-and-number-lines

One easy way to think of **absolute value** is the distance it is from zero. To do that,
a number line comes in handy. Watch and learn.

www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-abs-value/v/absolute-value-of-integers

Learn how to find the **absolute value** of 5, -10, and 12.

www.coolmath.com/algebra/18-absolute-value-equations-inequalities/01-absolute-values-01

Before we start sticking a bunch of x's in these things, let's remember what they are. Look at a few examples:

www.purplemath.com/modules/absolute.htm

There is a technical definition for **absolute value**, but you could easily never need
it. (If you go as far as calculus, the technical definition might come up.) For now ...

www.purplemath.com/modules/solveabs.htm

Demonstrates how to solve **absolute**-**value** equations, and explains the
reasoning behind the algebra. Also compares algebraic results with graphical
results.

virtualnerd.com/middle-math/integers-coordinate-plane/integers-absolute-value/absolute-value-definition

Note: In this tutorial you'll see how you can think of **absolute value** in a very
intuitive way. Let us know if you have any questions about it!

www.mathpapa.com/absolute-value-equation-calculator

Shows you the step-by-step solutions solving **absolute value** equations! This
calculator will solve your problems.