Answer:
The answer is 13
Step-by-step explanation:
4(7)-3(5)
4(7)=28
28-3(5)
3(5)=15
28-15= 13
Hope this helped!

We need to get the equation in square form
We apply completing the square method

Divide all the terms by 5

Group x terms and y terms separately

By completing the square method, we take half of coefficient of x and square it

square it 
Add 1 on both sides


square it 
Add 4 on both sides

Add 6 on both sides

Now factor both parenthesis

The equation of the circle is 