[tex]ilosc\ kwiatow:\ x\\ilosc\ roz\ : \frac{2}{5}x\\ilos\ tulipanow:\ \frac{2}{5}x+2 \\ilosc\ zonkili:\ 4\ szt\\\\\frac{2}{5}x+\frac{2}{5}x+2+4=x\\\\\frac{4}{5}x+6=x\\\\x-\frac{4}{5}x=6\\\\\frac{1}{5}x=6\ \ |*5[/tex]
[tex]x=30\\\\roze:\\\\\frac{2}{5}x=\frac{2}{\not{5}^1}*\cancel{30}^6=12\ szt\\\\odp.\ W\ bukiecie\ bylo\ 12\ szt\ roz.[/tex]
