Question 4882
Let x = number of large cakes
y= number of small cakes


x+y = 60
2x +y = 75


Multiply both sides of first equation by -1,
-x - y = -60
2x + y = 75


Add equations:
x = 15 large cakes


Since the total number of cakes is 60, that leaves 45 small cakes.


Check:  Total icing = 2(15) + 45 = 75


R^2 at SCC