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.
2y/4 - y/7 = y-3/2
(y-3 are in the numerator)
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