2m = n/2 - 3 where m and n are the two numbers.
It is 3n - 5.
It is: 5k-60
9b2-7
It is simply: x-1
The quotient need not be greater than a whole number less than one!
x / (2y - 7)
x/y - 4 = 2
The expression is: 4x-500
5x - 8
It is 3n - 5.
2N-64
3x - 3
It is: 5k-60
You could mean y/4 - 3, or you could possibly mean 4/y - 3. It is somewhat ambiguous which quotient you mean.
To say that 2 is less than twice a number and four means, algebraically, that 2 < 2x + 4. This simplifies to -2 < 2x or x > -1. This is not a quotient, however, so perhaps your question was not clearly worded.
9b2-7
It is simply: x-1