Try another version of this question Get help:
Write the augmented matrix as a system of equations
`[(-2,0,-1,350),(-9,1,-3,100),(3,0,1,400)]`
`x` + `y` + `z =`
`x` + `y` + `z =`
`x` + `y` + `z =`
-2
0
-1
350
-9
1
-3
100
3
0
1
400