Răspunsuri

2014-11-17T10:30:03+02:00
3-6x=2-4x
3-2=6x-4x
2x=1
x=1/2

2(x+1)=3(x-1)
2x+2=3x-3
2+3=3x-2x
x=5

2(x+1)=4-(1-2x)

2x+2=4-1+2x
2x+2=3+2x
2=3
nu avem solutii