A bag is filled with green and blue marbles. there are 91 marbles in the bag. if there are 15 more green marbles than blue marbles, find the number of green marbles and the number of blue marbles in the bag.
First, you divide Both 91 and 15 by 2, this gives you 45.5 and 7.5. Next, you make 2 separate equations one for Green and one for Blue. (GREEN = 45.5+7.5) and (BLUE = 45.5 - 7.5)
