Question

I think of a number, multiply it by 5, subtract 2, subtract the original number, and then halve it. If the starting number was x, give an expression for the final answer, as simply as possibly.

Answer 1

Explanation:

Let the number be x

the first expression is 5x

Then subtract 2. You get 5x - 1

Subtract the original number 5x - 1 - x = 4x - 1

Answer: 4x - 1