Solve for w, x, y, z
x + 2y - z = 3
2x - y + z - w = -3
y + 2z - w = -7
...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 01.01.2020 10:31, puppylove899
Solve for w, x, y, z
x + 2y - z = 3
2x - y + z - w = -3
y + 2z - w = -7
x + 3y + 2z + 2w = 3
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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