Practice - Unit 3: Expressions and Equations

Which expressions equal 32? Choose all that apply.

• A. 2⁵

• B. 4⁵/2

• C. 2² * 2 + 2

• D. 5² * 3 - (8 - 5)

• E. (4 + 5)² - 17 / 2

Consider the expression 7x² + 9 + 3x. Tell whether each statement is True or False. a. The expression has three terms.

• True

• False

Consider the expression 7x² + 9 + 3x. Tell whether each statement is True or False. b. The coefficient of x is 3.

• True

• False

Consider the expression 7x² + 9 + 3x. Tell whether each statement is True or False. c. The expression can be simplified to 10x² + 9.

• True

• False

Consider the expression 7x² + 9 + 3x. Tell whether each statement is True or False. d. The constant term is 9.

• True

• False

Evaluate: 53 - 3² * 2

• 35
• 36

• 37

• 38

Which statement shows equivalent expressions?

• 5(x - 2) = 5x - 3

• 3(x + 6) + x = 4x + 9

• 8(2x + 3) = 16x + 24

• 4(5x + 2) - 6 = 20x + 14

Divit is 4 years younger than twice his brother’s age. Which expression could be used to find Divit’s age?

• 4x - 2

• 2x - 4

• 4 - 2x

• 2 - 4x

Which value makes the equation 3x - 6 = 36 true?

• 10

• 12

• 14

• 16

A store starts the day with 36 packages of juice boxes. Each package contains the same number of juice boxes. By the end of the day, there are only 8 packages of juice boxes left. Part A: Write an expression with two terms to represent the number of juice boxes the store sold. Part B: Simplify your expression to create an equivalent expression.

• 8x = 36

• 8+x = 36

• 8-x = 36

• 8/x = 36