Group like terms first
3a-6a+2ab-ab+2b
add
-3a+ab+2b
that is simplified
The value of x in the this picture is x=11.5
For the first picking the probability of picking a is 1/26 as there is only 1 a out of the 26 letters. For the second picking there are only 25 letters and there is only 1 e out of the letters. For the succeeding picks, the probabilities are 1/24, 1/23, and 1/22. Thus, the probability is 1/7893600.
Attach picture, where is below
