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determinati coordonatele puntului de intersectie a dreptelor de ecuatii
2x+y-4=0
3x+y-5=0


Răspuns :

[tex] \left \{ {{2x+y-4=0} \atop {3x+y-5=0}} \right. \ \textless \ =\ \textgreater \ \left \{ {{2x+y=4} \atop {3x+y=5}} \right. \ \textless \ =\ \textgreater \ \left \{ {{-2x-y=-4} \atop {3x+y=5}} \right. [/tex]
=> x=1, y=2