Răspunsuri

2014-10-07T17:19:44+03:00
Cel mai inteligent răspuns!
2014-10-07T17:21:14+03:00
Desfaci paranteza  2x+10-x+3x-3=35
2x-x+3x=35-10+3=
4x=28
x=7

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