Question

The sum of two numbers is 42. The sum of 5 times the 1st number and 9 times the 2nd number is 190. What are the two numbers?

Answer 1

Explanation:

x + y = 42

5x + 9y = 190

x = 42 - y

5(42 - y) + 9y = 190

210 - 5y + 9y = 190

210 + 4y = 190

4y = -20

y = -5

x = 42 - y = 42 - -5 = 42 + 5 = 47