Please specify your question
That is how the absolute value is defined. For x < 0 the value of x is negative (by definition). Therefore, the value of negative x is positive (negative of a negative). So abs(x) = -x when x < 0
The answer will depend on what x is.
No, because 'x' is a variable.
How do we find it?
im trying to find the value of my x-men cards
The formula to find the value of X would be Y-2X. This would equal to y-9 times 2 X.
Lenght x r x pie x 2