Вопрос от посетителя
3/7(0.56-4.9y)-6/13(0.52-3.9y)=0.6
Отвечает Илюха:
3/7(0.56-4.9у)-6/13(0.52-3.9у)=0.6
0.24-2.1у-0.24+1.8у=0.6
-0.3у=0.6
у=0.6:(-0.3)
у=-2
3/7(0.56-4.9y)-6/13(0.52-3.9y)=0.6
3/7(0.56-4.9у)-6/13(0.52-3.9у)=0.6
0.24-2.1у-0.24+1.8у=0.6
-0.3у=0.6
у=0.6:(-0.3)
у=-2