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Write the augmented matrix as a system of equations
`[(-1,-2,3,300),(1,1,1,100),(0,0,1,250)]`
`x` + `y` + `z =`
`x` + `y` + `z =`
`x` + `y` + `z =`
`[(-1,-2,3,300),(1,1,1,100),(0,0,1,250)]`
`x` + `y` + `z =`
`x` + `y` + `z =`
`x` + `y` + `z =`
Get help:
-1
-2
3
300
1
1
1
100
0
0
1
250