2x-xy+y=3
x+2xy-2y=4
(система)
x+2xy-2y=4 (*2)
4x-2xy+2y=6 +
х+2ху-2у=4
5х=10
х=2
2+4у-2у=4
2у=2
у=1
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2x-xy+y=3
x+2xy-2y=4 (*2)
4x-2xy+2y=6 +
х+2ху-2у=4
5х=10
х+2ху-2у=4
х=2
2+4у-2у=4
х=2
2у=2
х=2
у=1