the 5-d process is the process in answering problems with things meaning if you have amanda is x and jake is 3 times amandas age....and there mother is 4 times jakes age..and there sum of ages is ....its these kind of problems. so you have a step by step process to solve them...(but you can do it without and skip a few steps when doing it ) but here it is--> 1) describle or draw the problem 2) Define (define what varables you are using 3) Do (Set up equation and solve) 4)Decide (chekc ur answer) 5)Declare ( write the final answer (ex..amanda is 2, Jake is 6...) hope this helps