Question

The sum of three numbers is 86. The first number is 6 more than the second. The third number is 2 times the second. What are the numbers?

Answer 1

26, 20, 40

Explanation:

x + y + z = 86

x = y + 6

z = 2y

now we put the 2. and 3. equation into the first :

y + 6 + y + 2y = 86

4y = 80

y = 20

z = 2y = 2×20 = 40

x = y + 6 = 20 + 6 = 26