January 2019 1 19 Report
Tentukan himpunan penyeselaian dari sistem persamaan berikut dengan menggunakan gabungan metode eliminasi dan substitusi

a. 4x - 2y = 18 dan 3x - 5y = 31
b . -12x - 10y = -26 dan 8x - 3y = -31
c. -7x - 6x = 45 dan -8x - 7y = 52
d. -3x + 2y = 9 dan 6x + 5y = 9

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