5x < 20
85n
125
5+9(n)
5A-2
5x+3
85n
125
5x5x5
5+9(n)
5A-2
1/5x+5x
5n < 65
5x+3
5 (9+x) Where x is the "a number"
4n-5 (Which is four times a number minus 5)
Five to the fifth power, or five times five times five times five times five.
3x + 5 = 29