Properties of Equality

What property of equality is shown below?

25 + d = 36

25 + d - 25 = 36 - 25

• addition property of equality

• subtraction property of equality

• division property of equality

• multiplication property of equality

What property of equality is shown below?

y - 12 = 30

y -12 + 12 = 30 +12

• addition property of equality

• subtraction property of equality

• multiplication property of equality

• division property of equality

• addition property of equality

• subtraction property of equality

• multiplication property of equality

• division property of equality

Which property of real numbers justifies the work shown from Step 1 to Step 2?

• Distributive Property
• Commutative Property
• Identity Property
• Associative Property

• Multiplication Proptery of Equality

• Subraction Property of Equality

• Division Property of Equality

• Addition Property of Equaltiy

• Multiplication Property of Equality

• Subtraction Property of Equaltiy

• Division Property of Equality

• Addition Property of Equality

88= 33+ 5x then 88-33=(33 +5x)-33

• Multiplication Propterty of Equaltiy

• Division Property of Equaltiy

• Addition Property of Equaltiy

• Subtraction Property of Equality

• Yes because each side is divided by the same number.

• No

If 12-2 =10, does 12-2-3=10-2

• yes

• no because a different number is subtracted from each side.

Maggie said she could add 8 to both sides of any equation and the expressions on both sides of the equation would still be equal. Do you agree or disagree? Why or why not

• Agree Maggis is correct.

  The additon property of equality states that if the same number is added to both sides of an equation, then the sides stay equal.

• Disagree Maggie is incorrect.