I am looking at question 2 which involves substitution, I can do 2(i) & (ii) by converting them into first order using the given substitution, but i don't know what to do about the 'y' in Q2(iii). A hint will do? What do i replace it with?
I cannot read the attachment - too fuzzy. Please post a cleaner "picture".I am looking at question 2 which involves substitution, I can do 2(i) & (ii) by converting them into first order using the given substitution, but i don't know what to do about the 'y' in Q2(iii). A hint will do? What do i replace it with?