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3x + 2y = 6
2x - y = 5......kalikan 2
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3x + 2y = 6
4x - 2y = 10
............( + )........
7x = 16
x = 16/7
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Substitusikan x = 16/7 ke 2x - y = 5
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2x - y = 5
2(16/7) - y = 5
y = 2(16/7) - 5
y = 32/7 - 5
y = - 3/7
(x,y) = (16/7 , - 3/7)