Im sorry im
just answering to get points to ask questions
Let's call the numerator
. Since the denominator is four more than three times the numerator, it means that it equals
. So, the original fraction is

Note that this implies that
, otherwise the denominator would be zero. Now, we need to increase both numerator and denominator by 4, obtaining this new fraction:

Note that this implies that
, otherwise the denominator would be zero. And we know that this equals 925 (assuming that 925925 is some kind of typo/formatting error). This leads to the equation

Since we assumed that the denominator is not zero, we can multiply both sides by it, so that the equation becomes

Subtract 4 from both sides to get

Subtract 2775x from both sides to get

Finally, divide both sides by -2774 to get

Try this solution:
Common view of the equation of the circle is (x-a)²+(y-b)²=r², where point (a;b) is centre of the circle, r - radius.
1. using the coordinates of the centre and point (2;13) it is possible to define the radius of the circle: r=√(5²+12²)=13;
the equation is (x+3)²+(y-1)²=13² or (x+3)²+(y-1)²=169;
2. using the coordinates of the centre and the radius: (x-2)²+(y-4)²=6² or (x-2)²+(y-4)²=36.
There is no solution to this