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2x + 3y =26...........(x 3)
3x + 4y= 37...........(x 2)
...................................-
6x + 9y = 78
6x + 8y = 74
.......................-
y = 4
Substitusikan:
2x + 3y = 26
2x + 3 × 4 =26
2x + 12 =26
2x = 26 - 12
2x = 14
x =7
x, y = (7,4)