Let \(y = \frac{x - 3}{x + 7}\). The equation can be expressed in the form (x+a)(y+b)=c. Find a, b, c.
xy + 7y = x-3
x - xy - 7y = 3 factor ...note that a 7 is added on the L and the right in the next equation
(x+7)(-y+1) = 3 + 7
(x+7)(-y+1) =10 multiply by -1 to get correct sign for 'y'
(x+7)(y-1) = -10 take it from here .....