a)
z/a = 1/c
zc=a /:c
z=a/c
b)
b/z=4x/d
4xz = bd
z=bd/4x
c)
x=a+b/z / *z
zx=a+b / :x
z=(a+b)/x
d)
z do kwadraru * a = c / :a
z do kwadraru = c/a
z= pierwiastek z c/a
e)
z/a = b/z
z do kwadratu = ab
z= pierwiastek z ab
f)
(z do kwadraru + 1) / c = b/3
3(z do kwadraru + 1) = bc
3 z do kwadratu + 3 = bc
3 z do kwadraru = bc - 3
z do kwadraru = (bc - 3) / 3
z= pierwiastek z (bc - 3) / 3