Răspunsuri

2014-05-16T17:41:37+03:00
3x-1pe 2=1.3
3x-1=2.6
3x=3.6
x=3.6:3
x=1.2

4x la a doua -1 =0
4x^2=1
x^2=1/4
x= radical din 1/4
x=1/2

2pe 3 x + 0.6 > -1
2x/3>-1-0.6
2x/3>-1.6
2x>-1.6*3
2x>-4.8
x>-2.4