Odpowiedź:
[tex]ef + g = 1 \\ ef = 1 - g \\ f = \frac{1 - g}{e} [/tex]
[tex] \frac{k + m}{3} = t \\ k + m = 3t \\ m = 3t - k[/tex]
[tex]h(d + e) = x \\ hd + he = x \\ he = x - hd \\ e = \frac{x - hd}{h} [/tex]
