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Kalikan kedua ruas dengan 6, didapat:
2(x-3) + 3(y+2) = 6
2x - 6 + 3y + 6 = 6
2x + 3y = 6 (1)
Kalikan kedua ruas dengan 20, didapat:
4(x-2) - 5(y+3) = -20
4x - 8 - 5y - 15 = -20
4x - 5y - 23 = -20
4x - 5y = 3 (2)
Eliminasikan (1) dan (2):
2x + 3y = 6 |x2|
4x - 5y = 3 |x1|
Menjadi:
4x + 6y = 12
4x - 5y = 3
- - - Kurangi - - -
11y = 9
y = 9/11
Sehingga,
2x + 3y = 6
2x + 3(9/11) = 6
2x + 27/11 = 6
Kalikan dengan 11
22x + 27 = 66
22x = 39
x = 39/22
Sehingga,
x = 39/22 dan y = 9/11
no 1: misal x = 0 dan y = 2 = (0,2) dan misal x = 3 dan y = 0 = (3,0)