Question

solve by graphical method x+y=9 and 2x+y=12​

Answer 1

Step-by-step explanation:

I hope it was helpful to you

Answer 2

Answer:

x+y=0

∣x =3 ,1 ,2∣

∣y =−3 ,−1 ,−2∣

2x−y=9

∣x =3 ,0 ,1∣

∣y =−3 ,−9 ,−7∣

Point of intersection of the two lines is (3,-3)