Answer:
I think no. Because degree is the sum all variables in first equation degree. Is14 but second equation degree not 14.

The probability of getting 0 heads in 4 tosses (or equivalently, 4 tails) is

.
So the desired probability is
2*(x-5) = -33, so x-5 = -16.5, so x = -11.5
This is assuming that "the difference between a and b" is a-b, which seems to be the accepted interpretation.