Any square of side less than 6 units
Your question is incoherent.
6x < 60
4n-6
n - 6 = 20
N = (6*(a 2 )) -18
six less than fourteen times a number
In words, the same idea could be expressed as: "Six less than a number is negative fifteen".
Any square of side less than 6 units
n - 6
As an algebraic expression, six less than a number p is simply: p-6
Any number less than 3.
e-6
six
15
1234580
Six less than a number w squared is written algebraically as w2 - 6