Question

trabalho de matemática :/
08. Escalone e resolva os seguintes sistemas:

Answer 1

a)$\left[\begin{array}{ccc}-1&1&1\\2&0&-1\\3&1&0\end{array}\right] x=0,y=1,z=1$
b)$\left[\begin{array}{ccc}4&-1&7\\5&3&-1\\-7&-11&+17\end{array}\right] x= -3,9215;y7,6470;z=3,3333$
c)