Equal sign

Definition

The equal sign (=) is a symbol used to indicate that two expressions have the same value. It is fundamental in forming equations and expressing mathematical equality.

5 Must Know Facts For Your Next Test

1. The equal sign signifies equivalence between two algebraic expressions.
2. It is used to form equations, which are statements of equality between two expressions.
3. Solving an equation typically involves finding the value(s) of the variable(s) that make the equation true.
4. An equal sign can be used in multiple contexts, such as defining functions and solving inequalities.
5. Misinterpreting or misplacing an equal sign can lead to incorrect solutions and misunderstandings in problem-solving.

Review Questions

• What does the equal sign indicate in an algebraic expression?
• How is the equal sign used when forming equations?
• Why is it important to correctly interpret and place the equal sign within mathematical expressions?

Related terms

Equation: A statement that asserts the equality of two expressions by using an equal sign.

Expression: A combination of numbers, variables, and operators without an equal sign.

Inequality: A mathematical statement that compares two values or expressions using symbols like <, >, ≤, or ≥ instead of an equal sign.