Which property explains why these two expressions are equal?
-5 + (x + 4) = -5 + (4 + x)
a) associative property
b) commutative property
c) distributive property
d) multiplicative identity property

What is the question ehre

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.