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X+y=2 x*y=-11 plss nevoie repedee

Răspuns :

x=2-y
2-y/y=11
2-y=11y
2=12y
y=2/12
x=2-2/12+2x5
x=24-2/12=22/12
verificare
22/12/2/12=11

x=2-y
2-y/y=11
2-y=11y
2=12y
y=2/12
x=2-2/12+2x5
x=24-2/12=22/12
verificare
22/12/2/12=11 sper ca te-am ajutat