Respuesta :
Because the commutative property states that it doesn't matter which order you add number, just switch up the order that you add -2 and 6.
Instead of -2 + 6, it can be 6 + (-2) or 6 - 2
Hope this helped :)
Instead of -2 + 6, it can be 6 + (-2) or 6 - 2
Hope this helped :)