how can i get x/y to be on the left of the equation a = x - b* y ?

how can i get x/y to be on the left of the equation a = x - b* y ?

Answer 1

[Star Strider]

x/y = a/y + b

Answer 2

[Roger Stafford]

   y/x = (x-a)/(b*x)

Note: There is no way you can solve for y/x entirely in terms of a and b. It isn't uniquely determined by them.