*15 points*

i need a proper explanation .

To find our solution, we first write the equation in the following form:


In this formula a represents the slope, therefore:


Because the line passes through the point P(5, -7), we can fill in the coordinates of this point in the formula and we get the following:


Now, add up 1 to both sides and we get

So the formula will be:


Bringing x to the other sides gives us:

Finally we multiply by 5 to get our standard form (and therefore our final answer):

Hence, the answer is D.

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