Algebra is a branch of mathematics that uses letters (variables) and symbols to represent numbers and quantities in equations and formulas.

Instead of always using known numbers, algebra allows us to work with unknown values. For example:

x+5=12x + 5 = 12

Here, x represents an unknown number. By solving the equation, we find that:

x=7x = 7

Algebra helps us identify patterns, solve problems, and describe relationships between quantities.

Skill Level: Beginner