Are Equations True or Not?

12x = 144

• x = 12
• x = 4
• x = 2
• x = 132

• a = 1
• a = 3/5
• a = 5/5
• None of the above

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

x - 9.32 = 7.78

• 18.1
• 17.1
• 1.71
• 1.81

What is the solution of r - 11 = 5

• 11

• 14

• 15

• 16

x - 5/7 = 1/7

• 6/7
• 4/7
• 7/7

x ÷ 3 = 6.3

• 2.1
• 18.9
• 9.3
• 3.3

Which equation has x = 2 as a solution?

• 3 + x = 10
• 11 + x = 13
• 4x = 32
• 5x =25

What is the solution of 9 + k = 18

• 18

• 9

• 8

• 7

x - 17.6 = 1.9

• 19.5
• 18.5
• 20.5
• 21.5