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2x - y = 4 Ι×2Ι
3x + 2y = 8 Ι×1Ι
4x - 2y = 8 di sibtitusikan
3x + 2y = 8 4(16/7) - 2y = 8
di tambah 9,14 - 2y = 8
- 2y = 8 - 9,14
7x = 16 -2y = - 1,14
x = 16/7 y = 0,57