Question

2. Write a system of equations and solve.

The difference of two numbers is 5. Their sum is 23. What are the two numbers?
Pls explain answer

Answer 1

x - y = 5

x + y = 23

x = 14, y = 9

Explanation:

Make x subject:

x = 5 + y

Substitute c by (5 + y) :

( 5 + y) + y = 23

2y = 18

y = 9

Substitute y (9):

x = 5 + 9

x = 14