Five times a number is less than three times the same number. Find such an answer.
You can use any variable to represent the number; the most common are n or x.
So, five times a number can be written as 5x (because there is a number and a letter being multiplied, we don't even need a multiplication sign).
5x < 3x
To get the variables on the same side, you subtract 3x from each side.
5x - 3x < 3x - 3x
then you get: 2x < 0
Divide both sides by two:
2x / 2 < 0 / 2
then you get: x < 0
Since x is less than 0 (and not equal to), the answer would be all negative numbers.
Hope this helps!