Adding the two equations side by side eliminates y and yieldsx=6, as shown
1
2
y=4 x−
1
2
y=2 –––––––– x+0=6
If (x,y) is a solution to the system, then (x, y) satisfies both equations in the system and any equation derived from them. Therefore, x=6. Choices A, B, and C are incorrect and may be the result of errors when solving the system.