Which ordered pair is a soulution of the equation 2x-y=9

(0,-9)

Step-by-step explanation:

2x-y=9 is firsl equation

x=9+y is second equation

put value of x in 1st equation

2(9+y)-y=9

18 +2y-y=9

18+y=9

y=9-18

y=-9

put value of y in st equation

2x-(-9)=9

2x+9=9

x=0

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.