Rewriting formula
This task is about rearranging equations to make x the subject.
Rewrite each of the formulae below to make x the subject.


a) 
y = x + 4
x = ____________________

b) 
y = 3x
x = ____________________

c) 
y = ^{x}⁄_{5}
x = ____________________

d) 
y = 5x^{2}
x = ____________________

e) 
y = 2x  1
x = ____________________
