Răspuns:
2x-y=1 I·2
6x+2y=0
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4x-2y=2
6x+2y=0
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10x=2=>x=(2/10)⁽²=> x= 1/5
2·1/5-y=1 =>2/5-y=1=> y= 2/5-⁵⁾1=>y= -3/5
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2x-3y= -2
3x+y=3 I ·3
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2x-3y=-2
9x+3y=9
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11x=7=>x=7/11
2·7/11-3y= -2
14/11-¹¹⁾3y=-¹¹⁾2=>14-33y= -22=> -33y=-22-14=>-33y=-36=>y=(36/33)⁽³=>y=12/11
