Respuesta :

Answer:

-25/7

Step-by-step explanation:

x/y + (x-23)/(y+12

x = 3 and y = - 7

3/7 + (3 — 23)/(-712)

= 3/7 + -20/5

= 3/7 -4

= (-4 times 7 plus 3, over 7) = -25/7