Understanding Linear Equations and Expressions

Which of the following is an example of a variable in an algebraic expression?

• 5

• 7

• 12

• 3

• 4

• 7

Which of the following is an example of an equation?

• 9

• Both A and B

What is the expression for the verbal situation: "Five more than a number"?

Which of the following represents a one-step linear equation?

• A number decreased by 2 equals 5.

• A number increased by 2 equals 5.

• Two times a number equals 5.

• A number divided by 2 equals 5.

• 4 and 7

What is the term for a mathematical phrase that can contain numbers, variables, and operators, but no equals sign?

• Equation

• Expression

• Term

• Coefficient

Write a one-step linear equation for the situation: "The product of a number and 3 is 12."