Question

Which property is used in the statement? If y = 3 and 3 = 2 + 1, then y = 2 + 1.

transitive property

symmetric property

addition property of equality

subtraction property of equality

Answer 1

The addition propertyof equality is the answer

Answer 2

The correct answer is "C" (Addition property of equality)

Explanation:

1. Are the two expression equal in anyway to each other?

2. When adding a value for example as show in the question "y=3", do both equations still remain equal to one another?

3. When you solve the equation for example as in the equation (change the letter y into a 3), is the answer correct and also equal to the other equation?

If all of these steps are true then your dealing with an Addition Property of Equality(APE).