Question

If you take a number, times by 5 then subtract 9. You get the same as if you took the number, times by 4 then add 1. What is the number?

Answer 1

• 10

Explanation:

Let the number be x

• 5x - 9 = 4x + 1
• 5x - 4x = 1 + 9
• x = 10

Proof:

• 50 - 9 = 40 + 1