Question

Matrices and Systems of Equations

Answer 1

Here is my system. . .

Answer 2

\[4-x_2-x_3+x_4 = 0\]
\[x_1+x_2+x_3+x_4 = 6\]
\[2x_1+4x_2+x_3-2x_4 = -1\]
\[3x_1+x_2-2x_3+2x_4 = 3 \]

Answer 3

I don't need help solving it. My questions is why the augmented matrix for this system is the following. . .

Answer 4

0 -1 -1 1 | 0
1 1 1 1 | 6
2 4 1 -2|-1
3 1 -2 2 | 3


I have a concern with the first row as shouldn't the 4 be carried over the equal sign?

Answer 5

augmented