Indicate which property is illustrated in Step 4.


Step 1

(-8) + 8 + 2(8 + 2)

=

(-8) + 8 + (2 • 8) + (2 • 2)


Step 2


=

(-8) + 8 + (16) + (4)

Step 3


=

(-8) + 8 + 20

Step 4


=

0 + 20

Step 5


=

20