Wyznacz x     1/x + 2/y = 1     x =/ 0 x=/1 y=/0    =/ (nie równe)

[latex]\frac{1}{x}+\frac{2}{y}=1 \frac{1}{x}=1-\frac{2}{y} x=\frac{1}{1-\frac{2}{y}}[/latex]

[latex] \frac{1}{x}+ \frac{2}{y}=1 [/latex] [latex] \frac{1}{x} =1- \frac{2}{y} [/latex] [latex]obliczmy- z- proporcji[/latex] [latex]x= \frac{1*1}{1- \frac{2}{y} } [/latex] [latex]x= \frac{1}{1- \frac{2}{y} } [/latex]