Question 1015283


5(n+4)+(-4n)
 =(5n+20)+-4n...............Distributive Property (DP)

(5n+20)+(-4n)
 =5n+(20+-4n)..........Associative Property of Addition (APA)

5n+(20+-4n)
 =5n+(-4n+20)........Commutative Property of Addition (CPA)