#1: x = 1/(n-z)*((x*(n-z-1))+(y*(x^((-1*n)+z+1))))
simp
x
#2: b = (-1^(1/((-1*n)+1)*(2+n)))*(a^(1/((-1*n)+1)))
#3: x' = 1/(y'^(1/(n-1)*(-2+n)))/((n^(n/(n-1)))-(n^(1/(n-1))))
#4: a = (x+(((1/x)+1)*((x^m)+((d+e)/(x^n)/(f+g)))))/(x+1)
simp all
#2
a
simp
#3
y'
simp
deri x'
