Addition and Subtraction Property of Equality

rheyndelacruz 307 views 10 slides May 04, 2021
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Addition and Subtraction Property of Equality


Slide Content

ADDITION AND
SUBTRACTION
PROPERTY OF
EQUALITY

ADDITION PROPERTY OF
EQUALITY (APE)
●If a, b, and c are real numbers then,
a + c = b + c

SUBTRACTION PROPERTY OF
EQUALITY (SPE)
●If a, b, and c are real numbers then,
a - c = b - c

Solve for x.

x - 2 = 13
x - 2 + 2 = 13 + 2 (add 2
to both sides of the
equation)

x = 15
EXAMPLE 1

Solve for x.

x + 9 = 21
x + 9 - 9 = 21 - 9
(subtract 9 to both sides
of the equation)

x = 12
EXAMPLE 2

EXAMPLE 3

Try it!

Determine the solution of
each equation.

a + 2 = 5
Try it!

Determine the solution of
each equation.

c - 4 = 16
Try it!

Determine the solution of
each equation.

12n + 10 - 10n = 10 + 3n -3
Try it!
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