n-n
7478
8 less than a number would be written as 8 - 5. or 8 - A No! 8 less than a number, say X, would be X - 8.
5-x
-- Every whole number that's less than 5 is a rational number less than 5. -- Every terminating decimal that's less than 5, and some that don't terminate, is a rational number less than 5. -- Every number less than 5 that you can completely write with digits is a rational number less than 5.
You would write it as x/3 -4, where x is whatever the number is.
n-9
The number that is 50 less than the number 185 is 135.
Usually you can't, because it's less than 1. If I HAVE to write it, I would write 013/20.
n-n
3a-6x2
x-8>17
2x = <4
You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.
23 and all numbers less than 23 is your answer. I would say to write it down that the answer is { 23, 22 21........... }
12-3/4x
Expressed as an equation, this would be equal to 13x - 3.