Review of Equations

5 less than a number is 15.

• x - 5 = 15
• 5 - x = 15
• 15 - x = 5

Twice a number is 24.

• 2n = 24
• 2/n = 24
• 2 + n = 24
• 2 - n = 24

What is the solution of r - 11 = 5

• 11

• 14

• 15

• 16

Which equation matches the sentence "6.5 more than x is 17"?

• 6.5 + x = 17
• 6.5 - x = 17
• x - 6.5 = 17
• 6.5x = 17

Which equation matches the sentence "The quotient of b and 4 is 3.2"?

• 4b = 3.2

• 3.2b = 4

• b - 4 = 32

Which number is a solution to the equation 4 + x = 11?

• 7
• 15
• 5
• 8

Which method can be used to solve the algebraic equation below?

z - 6 = 13

• Subtract 6 from both sides of the equation

• Add six to both sides of the equation

• Subtract 13 from both sides of the equation

• Add 13 to both sides of the equation