Question

Walter writes the statement shown below.

“If x is equal to y, then the sum of x and 4 is equal to the sum of y and 4.”

Which property of numbers did Walter apply to write the statement?
Answer
addition property of equality
associative property of addition
commutative property of addition
distributive property of addition

Answer 1

they are stating that if \[x = y\] then \[x + 4 = y + 4\]
they are using the addition property of equality. which lets us add the same amount to both sides of the equation, while maintaining equality.