Question

If x-y=8, then which of the following must be true?

1. both x and y must be positive for any value of x and y.

2. if x is positive,y must be negative for any value of x and y.

3.if x is negative, y must be positive for any value of x and y.

( answer can be more than 1)

need answer with correct explanation/solution

Answer 1

Here is your answer dear friend!!!
According to question, both opt. 1 and 2 are correct.
Hope this helps you dear..
plz mark my answer brainliest if you find it useful...