- #1

chris_0101

- 65

- 0

## Homework Statement

Simply put: prove that 2k - 1 is odd

I am having difficulty trying to show the above proof. If anyone can show me how to complete this, that would be great. Also if anyone can provide tips on the best way to prove statements such as these that would also be appreciated

## Homework Equations

n/a

## The Attempt at a Solution

if 2k - 1 is odd, then 2k - 1 = 2k + 1, by the definition of odd for any integer k.

This is what I did:

2k - 1 = 2k + 1

-1 = 1 --> but this is wrong and to be honest a really dumb answer, sorry.

Thanks