diketahui 1/4x + 1/6y = 4 dan 1/2x - 2/3y = -2. Nilai 2x - y adalah ... Tolong dengan rumus dan penjelasanya

4/6 y - 4/3 y = 16-(-4)
4/6 - 4/3 = 20
kpk = 6
4/6 y - 8/6 y = 20
-4/6y = 20
-4y = 120
y = -30

x + 4/6 .(-30) = 16
x + 4.(-5) = 16
x + (-20) = 16
x = 20 + 16 = 36

2x - y
2(36) -(-30)
72 + 30
= 102

(1/4x + 1/6y = 4)×2
1/2x - 2/3y = -2
--------------------- _
Y= 10
X= 28/3
2x-y= 2.28/3 - 10 = 26/3