Răspunsuri

2014-11-01T14:41:01+02:00
2*25-5*[9+5-3*(2x-1)]=25
50-5*[9+5-3*(2x-1)]=25
5*[9+5-3*(2x-1)]=25
9+5-3*(2x-1)=5
14-3*(2x-1)=5
3*(2x-1)=9
2x-1=3
2x=4
x=2
2014-11-01T16:08:20+02:00
2*25-5*[9+5-3*(2x-1)]=25
50-5*[9+5-3*(2x-1)]=25
5*[9+5-3*(2x-1)]=25
9+5-3*(2x-1)=5
14-3*(2x-1)=5

uite restu ca am uitat
3*(2x-1)=9 2x-1=3 2x=4 x=2