What is a Variable

Variable Definition

A letter/symbol representing
an unknown value

Examples of a Variable:

Use letters such as x, y, z for variables

Variable Tips for a known type:

For objets like apples or cars...
Always use the first letter of the object
For apples, use the variable a
For cars, use the variable c

When to use arbitrary variables:

Arbitrary variable phrases:
a number, an unknown number
then you must pick a variable.
Use x as an arbitrary variable

Variable Examples:

Example	Variable
John's age	a
Mary's height	h

Let statement:

The let statement is a short phrase
It restates what you are solving for.
Let a be John's age