Expressions vs Equations

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value but does not include an equality sign.

Front

What is an equation in mathematics?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equality sign (=).

Front

Identify the following: 3 + 17 - k

Back

This is an algebraic expression.

Front

Identify the following: 3x - 45 = b

Back

This is an equation.

Front

What does the equation A = 1/2bh represent?

Back

This equation represents the area of a triangle, where b is the base and h is the height.

Front

Back

Front

What type of mathematical statement is 3x + 2x = 5?

Back

This is an equation.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign and represents a value, while an equation states that two expressions are equal.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.