4.1 - 4.4 Review

Front

Simplify: 4a + 9 + a

Back

5a + 9

Front

Simplify: n - 10 + 9n - 3

Back

10n - 13

Front

Evaluate: 4m - 2 for m = 4

Back

14

Front

Calculate total cost: One-time fee of $30 and $12/month for 8 months

Back

$126

Front

Simplify the expression: -(2x + 7)

Back

-2x - 7

Front

What is a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operations.

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form.

Front

What is the distributive property?

Back

a(b + c) = ab + ac

Front

What is the difference between an equation and an expression?

Back

An equation has an equal sign; an expression does not.