Răspunsuri

2014-05-27T18:53:11+03:00
X/4+1,5=2x
x+6/4=2x
8x=x+6
x=6/7

2014-05-27T18:55:58+03:00
X=nr
x supra 4+15 supra 10=2x (aducem la acelasi numitor 40)
40x+60=80x=> 60=40x=> x=60 pe 40 =3 pe 2 (1,5)