Expressions, Equations, and Inequalities

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is an equation?

Back

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

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

What does the distributive property state?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.

Front

Simplify the expression: -6z + 42

Back

-6(z - 7)

Front

Use the distributive property to simplify: -2(6n + 3)

Back

-12n - 6

Front

Evaluate the expression: 2(3y + 4) when y = 2

Back

20

Front

What is the solution to the inequality: 4x - 5 > 11?

Back

x > 4

Front

What is a variable in an expression?

Back

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

Front

What is a coefficient?

Back

A coefficient is a numerical factor that multiplies a variable in an expression, such as 3 in 3x.