Question

sistemas lineares.. alguém pode resolver?​

Answer 1

$x = - \frac{z}{2} \\ y = \frac{ z}{2} \\ \frac{z}{2} + 2z = 1 \\ \frac{5z}{2} = 1 \\ 5z = 2 \\ z = \frac{2}{5} \\ \\ y = \frac{ \frac{2}{5} }{2} = \frac{1}{5} \\ \\ x = - \frac{1}{5}$