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x + 2y = 4 persamaan 2
4x + 2y = 8 persamaan 1
x = 4 - 2y persamaan 2
substitusikan persamaan 2 ke persamaan 1 :
4(4 - 2y) + 2y = 8
16 - 8y + 2y = 8
- 6y = 8 - 16
y =
masukkan nilai y ke salah satu persamaan :
x = 4 - 2()
x = 4 -
x =
Semoga membantu :)