Question

Sistemas lineares 3x3 me ajudem

Answer 1

$\left[\begin{array}{cccc}1&1&1&2\\2&1&-2&-6\\3&-2&-1&4\end{array}\right] ->\left[\begin{array}{ccc}-1&-4&-10\\-5&-4&-2\\\end{array}\right] ->-16z=-48$

z = 3

x + y = -1

2x + y = 0

--------

-y = 2

y = -2

x = 1