One-Step Equations

What what is the inverse operation of subtraction?

• addition

• subtraction

• multiplication

What is the inverse of multiplication?

• Addition

• Subtraction

• Division

What is the inverse of addition?

• multiplication

• division

• subtraction

When solving equations which two facts are always true? (Check two boxes only!)

• Whatever I do to one side of the equation I have to do to the other

• ignore negative signs and use all of the operations at once

• use opposite operations to get the variable alone

What would be the best first step to solving the equation?

3=x+5

• add 3 to both sides

• subtract 5 from both sides

• add 5 to both sides

Solve the equation:

x + 7 = 12

• x = 5

• x = 19

• x = -5

y - 3 = 7

• y = 7

• y = 4

• y = 10

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

Solve for x:

• x = 20

• x = 7

• x = 10