The 'answer' is the number that 'x' must be, or the range it must fall in, in order to
make the statement true, just as it is in all equations and inequalities.
Here's a way to find it:
2x - 3 < 23
Add 3 to each side:
2x < 26
Divide each side by 2:
x < 13
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No, 23 is less than 26.5 is.
Any other number is "greater or less than" it.
less than
43 because it is 23 more than 20 and 23 less than 86.
The prime number that is greater than 20 but less than 29 is 23.