leila kareem and bill served a total of 106 orders monday at the cafeteria. Kareem served 3 times as many orders as bill. leila served 9 fewer orders than bill. how many did they each serve

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30