Let n be a number.
The phrase "twice a number" can be represented as 2n.
The phrase "twice a number minus three" can be represented as 2n-3.
If nine is greater than twice a number minus three, we can write that sentence in algebraic language as follows:
[tex]9>2n-3[/tex]Which is the same as:
[tex]2n-3<9[/tex]