You are playing a card game where the total points you earn depends on the suits of the cards you draw. The total number
of points is given by the expression 3a + 3b - 2c -- 2d, where
a represents the number of hearts, b is diamonds, c is clubs,
and d is spades.
What is the total number points of you earn if you draw 3
hearts, 2 diamonds, and 1 spade?
points