one step

r + 20 = 27

• r = 7
• r = 47
• r = 13
• r = 20

S + 18 = 24

• S = 42
• S = 3²
• S = 18
• S = 4 + 2 

Solve the equation:
4p = 16

• p = 12
• p = -12
• p = -4
• p = 4

Solve the equation:
4p = 16

• p = 12
• p = -12
• p = -4
• p = 4

-6x = 30

• x = - 5

• x = 24

• x = 5

• x = 36

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

-3x = -9

• 3

• -3

• 9

• -1

x - (-2) = 7

• -9

• -5

• 5

• 9

• 100

• 120

• 4

• 5