Răspunsuri

2014-10-10T18:12:55+03:00
2014-10-10T21:55:42+03:00
Se rezolva ecuatia :
(x+ \frac{x}{2} + \frac{x}{4} )*2=350  (aducem la acelasi numitor in paranteza )
( \frac{4x+2x+x}{4} )*2=350

 \frac{7x}{2} =350
7x=350*2
x=100