#27 One-Step Equations Add/Sub

Solve the equation: 
x + 7 = 12

• x = 5

• x = 19

• x = -5

• x = 84

Solve the equation:
x - 4 = 6

• x = 10

• x = -10

• x = 2

• x = -2

Solve for x.
x   $-$  82 = 11

 

•  $-71$  

• 71

• 93

•  $-93$  

What is the inverse of addition?

• Subtraction

• Division 

• Multiplication

What is the inverse of subtraction?

• Addition

• Division

• Multiplication

Subtracting 17 is the inverse of ...

• Dividing by 17

• Multiplying by 17

• Adding 17

Adding 41 is the inverse of ...

• Multiplying by 42

• Subtracting 41

• Dividing by 42

A letter or symbol that represents an unknown value is called ______________.

• Variable

• Radicand

• Coefficient

• Constant

Solve: 
x + 12 = 45 

• x = 33

• x = 57

Solve:
x - 15 = 7

• x = 22

• x = 8