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$�� 6.5. �� , �� :�) {x^2-4x-3y=-9, x^2+2x-2y=11}; �) {3x+y+y^2=3, 5x-2y+y^2=-5};�) {xy+x=-3, xy+y=-8}; �) {xy-3x=-2,...$

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6.5. �� , �� :

�) {x^2-4x-3y=-9, x^2+2x-2y=11}; �) {3x+y+y^2=3, 5x-2y+y^2=-5};

�) {xy+x=-3, xy+y=-8}; �) {xy-3x=-2, xy+2y=16};

�) {xy-x=-15, 2xy+3y=-26}; �) {x-3xy=-1, xy-4y=-2}.

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