Write the matrix equation as a system of linear equations without matrices.
= 
A.
| 2x + 5y + 7z | = | -2 |
| 9x + 8z | = | 4 |
| 4x + 9y | = | 2 |
B.
| 2x + 5y + 7z | = | -2 |
| 9x + 8z | = | 4 |
| 4x + 9z | = | 2 |
C.
| 2x - 5y + 7z | = | -2 |
| 9x + 8z | = | -4 |
| 4x + 9y | = | -2 |
D.
| 2x + 5y + 7z | = | -2 |
| 9x + 8y | = | 4 |
| 4x + 9z | = | 2 |
Answer: A
Mathematics
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