Explicație pas cu pas:
[tex]x = 1,68 - y[/tex]
[tex]\frac{1,68 - y}{2,65} + y = 1 \\ 1,68 - y + 2,65y = 2,65 \\ 1,65y = 2,65 - 1,68 \\ 1,65y = 0,97 \\ y = \frac{0,97}{1,65} \implies y = 0,58(78)[/tex]
[tex]x = 1,68 - \frac{0,97}{1,65} = \frac{1,802}{1,65} \\ \implies x = 1,09(21)[/tex]
