Question

2x-xy+y=3

x+2xy-2y=4

(система)

 

 

 

 

 

 

Answer 1

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

Answer 2

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