Glossary: Equation VocabularyAn equation says "this equals that" It tells you that two things are equal. It will have an equals sign "=" like this in the middle:
The equation above says: what is on the left (x + 2) is equal to what is on the right (6) Mathematicians have names for different parts of an equation. Here we have an equation that says 4x7 equals 5, and all its parts:
Mathematicians wil say things about equations like "That expression has only two terms", or "The second term is a constant", or "Are you sure the coefficient is really 4?" 
