Question

Match each system of equations to its solution represented by an augmented matrix.

[1 0 0|750]
|0 1 0|850|
[0 0 1|1,000]


[1 0 0|500]
|0 1 0|400|
[0 0 1|200]


[1 0 0|400]
|0 1 0|600|
[0 0 1|900]


[1 0 0|1,300]
| 0 1 0|1,100|
[0 0 1|900]