2y/4 - y/7 = y-3/2

(y-3 are in the numerator)

You have been helped repeatedly by several tutors for these same type of questions.

I think it is time that you try them yourself and show where your difficulties lie with these.

e.g In every one, wasn't the first step to find the LCD ?
We then multiplied each term by that.
After that, they become very easy.

Show me your steps.