Question

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

Answer 1

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