Thanks for the quick reply. I feel stupid about

**Q2** as I made a mistake when I solved it myself

For the first question, I want to ask is that how are we supposed to arrange our final equation. For example in my question you can see that I have three variations of the equation and all of them are correct but what I mean is what is the most appropriate way of writing our final equation?

For example if I get the following equation after solving:

5y=3x+5

Am I supposed to do this

5y-3x-5=0

OR

-y+3x+5=0

OR

5y-3x=0

OR

y=(3x+5)/5

OR

Leave the equation as it is

5y=3x+5

You get my point? How do you know your final equation should look like?

Thanks!