Hi All,

In the following question

The competitive edge of a baseball team is defined as

. W = number of wins, L = number of losses. This year a the team had 3 times as many wins and

as many losses. By what factor did the competitive edge increase?

1.

where c = competitive edge.

2. Need to determine the original competitive edge so pick numbers

3. Simplify

=

=

=

QUESTION ONE. I would typically stop the symplification here. However the question went on to state

I understand HOW this next step was derived. What I'm trying to understand is WHY (i.e how did the author know the process required this extra step)?