One Step Addition and Subtraction Equations

What is the Subtraction Property of Equality?

• If you add to one side of an equation you must add to the other side.

• If there is subtraction in the equation.

• If you subtract from one side of an equation you must subtract from the other side.

• If there are negative numbers in an equation.

What is the Addition Property of Equality?

• If you add to one side of an equation you must add to the other side.

• If there is subtraction in the equation.

• If you subtract from one side of an equation you must subtract from the other side.

• If there are negative numbers in an equation.

What is the inverse operation of subtraction?

• multiplication

• addition

• division

• subtraction

What is the inverse operation of addition?

• addition

• division

• multiplication

• subtraction

Solve for x:

4 + x = 6

• x = 2

• x = 10

• x = 4

• x = -2

What property did you use to solve

x + 4 = 6

• Subtraction Property of Equality (subtracted 4 from both sides)

• Addition Property of Equality (added 4 to both sides)

Solve for x:

x - 42 = 13

• x = 29

• x = 55

• x = - 29

• x = 42

What property did you use to solve:

x - 42 = 13 ?

• Subtraction Property of Equality (Subtracted 42 from both sides)

• Addition Property of Equality (added 42 to both sides)