Question

If you take a number multiply by 5 then takeaway 9, You get the same as if you took the number multiply by 4 then plus 1. What is the number?

Answer 1

10

Explanation:

Set it up algebraically first. Let x be that unknown number

5x - 9 = 4x + 1

5x = 4x + 10

x = 10

So the number is 10