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2x - y = 4
-2x - 3y = -4 +
- 4y = 0
y = 0/-4
y = 0
2x - y = 4
2x - 0 = 4
2x = 4
x = 4/2
x = 2
6x - 3y = 6(2) - 3(0)
= 12 - 0
= 12
Jadi hasil 6x - 3y adalah 12
-2x - 3y= -4 |dikali 1|
mencai nilai x :
6x - 3y= 12
-2x - 3y= -4 _
8x= 16
x= 16/8
x= 2
mencari nilai y :
2x - y= 4
2(2) - y= 4
4 - y= 4
-y= 4-4
-y= 0
y= 0
maka :
6x - 3y
6(2) - 3(0)
12 - 0
12
Jadi, hasilnya adalah 12