Question

Resolva o sistema linear:
x+y+z=9
x-y+z=3
x+y-z=3​

Answer 1

Resposta:

$\text{Leia abaixo}$

Explicação passo-a-passo:

$\begin{cases}x + y + z = 9\\x - y + z = 3\\x + y - z = 3\end{cases}$

$2x + 2z = 12$

$x + z = 6$

$2x = 6$

$\boxed{\boxed{x = 3}}$

$3 + z = 6$

$z = 6 - 3$

$\boxed{\boxed{z = 3}}$

$3 + y - 3 = 3$

$\boxed{\boxed{y = 3}}$