Respuesta :

ghanami

Answer:

(46 , -17)

Step-by-step explanation:

hello :

x + y = 29...(*)

x + 2y = 12 ...(**)

multiply (*) by -1 : -x-y=-29   ...(***)

add (**) and(***) : y=-17

put this value in (*) : x-17 =29

so : x=46

one solution : (46 , -17)