Guys, could you help me please. How to do it? : 1. If Corey has 13 nickels and quarters in his pocket, and they have a combined value of 165 cents, how many of each coin does he have?

2.The sum of two numbers is 89. The difference of the two numbers is 47. What are the two numbers.

Let x be the larger number and y be the smaller number.
Write an equation that expresses the information in the sentence "The sum of two numbers is 89." :

Write an equation that expresses the information in the sentence "The difference of the two numbers is 47." :
Solve the system you have written above.

The larger number, x is
The smaller number, y is