Tolong gunakan cara eliminasi ya

3x-2y = -23 (x2)
2x-y = -13 (×3)

6x-4y = -46
6x-3y = -39 (dikurangi)
-y = -7
y = 7

2x-y = -13
2x-7 = -13
2x = -13+7
2x = -6
x = -6/2 = -3

2x+y = 2×-3 + 7
= -6+7 = 1 (C)

3x - 2y = -23 (×1) 3x - 2y = -23
2x - y = -13 (×2) 4x - 2y = -26 (-)
-x = 3
x = -3
2x - y = -13
2×(-3) - y = -13
-6 -y = -13
y = -6 + 13
y = 7
maka nilai 2x + y = 2×(-3) + 7 = -6 + 7 = 1 (C)