Răspunsuri

2014-10-18T14:21:42+03:00
2014-10-18T14:23:38+03:00
X=317/29
311x-268x=516;43x=416;x=416/43
312x=806-326;312x=480;x=480/312
37x-32x=52-37;5x=15;x=3