Răspunsuri

2014-05-06T22:53:47+03:00
X- nr.necunoscut
y-diferenta obtinuta
2x-0,(3)=y:1,4(6)=0,(45)
0,(3)=3/9 simplificam=1/3
1,4(6)=(146-14)/90=132/90 simplificam=11/5
0,(45)=45/99 simplificam=5/11
2x-1/3=y:11/5=5/11
y:11/5=5/11⇒   Y·5/11=5/11⇒   5y=5⇒  y=5/5=1
dini 2x-1/3=y ⇒2x-1/3=1
2x=1+1/3
2x=4/3
x=4/6=2/3
verificare
2·2/3-1/3=3/3=1:11/5=5/11