Question

if 2n-3 represents an even integer which of the following represents the next even integer. 1) 4n-3 2) 2n-1 3) 2n-2 4) 2n-5

Answer 1

If 2n-3 is even, then we add two to get the next even.

2n-3+2=2n-1

Answer 2

2n - 1.
You just have to add 2.

Answer 3

The same applies for odd too.

Answer 4

would you add 2 to the 2n? or just the -3?

Answer 5

You would add 2 to the entire expression. Treat it like (2n-3)+2. So, you're only adding it once, but when combined with the -3 it creates -1.