3y - 2x = - 6
12y - 8x = - 24
we can try plugging in each value
A
21 - 2x = - 6
84 - 8x = - 24
27 = 2x
x = 13.5
84 - 13.5 * 8 = - 24
84 - 108 = - 24
this works
__________________________
B
15 - 2x = - 6
60 - 8x = - 24
x = 10.5
60 - 84 = - 24
this works
__________________________
C
- 15 - 2x = - 6
- 60 - 8x = - 24
x = - 4.5
- 60 + 36 = - 24
this works
__________________________
D
- 21 - 2x = - 6
- 84 - 8x = - 24
x = - 7.5
- 84 + 8 * 7.5 = -24
- 84 + 60 = - 24
__________________________
I don't know what to tell you, I don't know the x value, all of these y values are possibilities