2008-11-19, 05:25 PM
Because in every algebraic expression (at least the basic ones), "X" is the most commonly used variable to represent any given number. For example:
"I bought X amount of potatoes."
"3x+4=12".
This causing it to fill in the second digit on the number.
/math lesson.
"I bought X amount of potatoes."
"3x+4=12".
This causing it to fill in the second digit on the number.
/math lesson.

