Question

Which property explains why these two expressions are equal?

a(b + c) = a(c + b)

Answer 1

They are equal because no matter how you flip an addition equation, the result will always be the same. aka the associative property.

Explanation:

Because variable a never moved, but b and c did, the answer remains the same.

example: x + y = y + x

Answer 2

The Associative Property.