Răspunsuri

2014-10-27T19:57:50+02:00
P.p - paranteza patrata
5 p.p2(3x+2)-11p.p=29-4
5 p.p2(3x+2)-11=25
2(3x+2)-11=25÷5
2(3x+2)-11=5
2(3x+2)=5+11
2(3x+2)=16
3x+2=16÷2
3x+2=8
3x=8-2
3x=6
x=6÷3
x=2