Răspunsuri

2014-03-18T15:04:01+02:00
3/y= x/54=5/45= 1/9 ( am simplificat fractia "5/45" cu 5) 3/y=1/9=> y=9*3=> y=27 x/54=1/9=> 9x= 54=> x= 6 x+y= 6+27= 33 y-x= 27-6=21