jika diketahui sistem persamaan

[ELIMINASI]
2x + 3y = -5 (x2)
3x - 2y = 12 (x3)
-----------------------
4x + 6y = -10
9x - 6x = 36
------------------- +
13x = 26
x = 2

[SUBTITUSI]
3x - 2y = 12
3(2) - 2y = 12
6 - 2y = 12
2y = - 6
y = - 3

2x - y =
2(2) - (-3) =
4 + 3 =
7

The correct answer is D. 7