Variables & Algebraic Expressions

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents an unknown value in mathematical expressions or equations.

Front

What is an algebraic expression?

Back

A combination of numbers, variables, and operations (like addition, subtraction, multiplication, and division) that represents a value.

Front

Solve for x: 56 / x = 8

Back

x = 7

Front

Solve for x: 6x = 42

Back

x = 7

Front

Solve for x: 4 + x = 17

Back

x = 13

Front

What is the value of x in the equation 27 = x + 12?

Back

x = 15

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does it mean to solve an equation?

Back

To find the value(s) of the variable(s) that make the equation true.

Front

What is a constant in algebra?

Back

A fixed value that does not change, often represented by a number.

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.