Math sentence made up of numbers symbols and operations

An equation is a math sentence made up of numbers, symbols, and operations that has an equals sign and a correct answer.
For example:

7y + = 6

An inequality is a math sentence made up of numbers, symbols, and operations that has an inequality symbol.
For example:

7 + u > 5x

An expression is a math sentence made up of numbers, symbols, and operations.
For example:

4h + 77 (5 - )

Hope that helped! =)

Uh idk bossman just do it lol