Answer:
The answer would be 2x - y = 2
About Standard Form:
2x - y = 2: 2x - y = 2:
2(2) - 2 = 2 2(-1) - -4 = 2
4 - 2 = 2 -2 + 4 = 2
2 = 2 2 = 2
x + 2y = 4: x + 2y = 4:
2 + 2(2) = 4 -1 + 2(-4) = 4
2 + 4 = 4 -1 - 8 = 4
6 = 4 -9 = 4
2x + y = 2: 2x + y = 2:
2(2) + 2 = 2 2(-1) + -4 = 2
4 + 2 = 2 -2 + -4 = 2
6 = 2 -6 = 2
x - 2y = 4: x - 2y = 4:
2 - 2(2) = 4 -1 - 2(-4) = 4
2 - 4 = 4 -1 + 8 = 4
-2 = 4 7 = 4
Really really sorry if I'm incorrect...