the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition: The sum of 6 and 8 is 14. a particular aggregate or total, especially with reference to money: The expenses came to an enormous sum.
we know that
if the lines a and b are parallel lines cut by transversal f
then
--------> by alternate exterior angles
solve for x

therefore
<u>the answer is</u>
the value of x is 
-12 and -1 are 11 units apart.
-12-(-1) = -11
The absolute value which is just the number of units is 11.
Hope this helps you
First it would be helpful to remove the radicals found in the numerator and denominator. We can do this by the property
.
This means that our fraction now becomes:

Now, we can subtract the exponents of
because of the fact that the numerator and denominator both have a base of
:


Our answer is
.