Translating Expressions into Equations

What is the primary difference between an algebraic expression and an equation?

• An equation contains only numbers, while an algebraic expression contains variables.

• An algebraic expression contains an equal sign, while an equation does not.

• An equation contains an equal sign, while an algebraic expression does not.

• An algebraic expression contains only numbers, while an equation contains variables.

Which of the following is an example of an algebraic expression?

• 7y = 21 + x

• x + 5 = 13

• 7y = 21

• x + 5

Which of the following is an example of an equation?

• x + 5

• 7y

• x + 5 = 13

• 7y + 3

What does the word 'sum' indicate in an algebraic expression?

• Subtraction

• Addition

• Division

• Multiplication

How would you express 'half of a number' in algebraic terms?

• 2x

• x / 2

• x + 2

• x - 2

How would you translate 'five less than a number' into an algebraic expression?

• 5 + x

• 5 - x

• x - 5

• x + 5

What does the word 'quotient' indicate in an algebraic expression?

• Addition

• Subtraction

• Division

• Multiplication

How would you translate 'a number plus 54 is 79' into an equation?

• 79 = x + 54

• 54 + x = 79

• x - 54 = 79

• x + 54 = 79

How would you translate '20 equals 4 more than twice a number' into an equation?

• 20 = 2x + 4

• 20 = 4 + 2x

• All of the above

• 4 + 2x = 20

How would you translate 'the difference of 10 and half of a number is 30' into an equation?

• 10 - x/2 = 30

• 10 - 2x = 30

• 10 + x/2 = 30

• x/2 - 10 = 30