I would like to know if there is any shortcut to the given statement:
Solving it by opening all the parentheses is not, according to me, a very sensible thing to do here.
Any other rule which can be applied to simplify it?
Thanks a Lot!
Go through the alphabet. Surely you'll get to x if you go a, b, c, d, ...
Of course, this is assuming that you're using the symbol x from the alphabet to represent the same thing as the variable x in the statement, which it is quite likely you are not... But if that wasn't the case it would not be so easy to solve.