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ex 6 si 7
te rogg !!!!!!!!


Ex 6 Si 7 Te Rogg class=

Răspuns :

7. x/y=3/4 => x/3=y/4=k => x=3k ; y=4k
2x+5y=52
2*3k + 5*4k=52
6k+20k=52
26k=52 | -26
k=26

x=3*26 => x=78
y=4*26 => y=104
Sper ca te-am ajutat !