Question

The equation y – 9 + 9 = –17 + 9 is an example of which property of equality?

A.Substitution Property of Equality
B.Addition Property of Equality
C.Reflexive Property of Equality
D. Symmetric Property of Equality

Answer 1

you add 9 to both sides to get:
y – 9 + 9 = –17 + 9

so it's Addition Property of Equality

answer

B.Addition Property of Equality

Answer 2

addition property of equality

Explanation:

The equation y – 9 + 9 = –17 + 9 is an example of which property

A.Substitution Property of Equality:

In this property we substitute some particular value for the variable.

B.Addition Property of Equality

This property states that when we add any number to one sides of the equation we do the same on the other side

y – 9 + 9 = –17 + 9

In the equation , 9 is added on both sides of the equation. So it is an example of addition property of equality

C.Reflexive Property of Equality

Reflexive property states that the number is equal to itself

D. Symmetric Property of Equality

It states that if a=b then b=a