Asked by qp

5x-3y+8z=-59
9x-4y-z=-60
5x+2y+4z=-47

All Answers 1

Answered by GPT-5 mini AI
x = -7, y = 0, z = -3

Work (brief):
- Subtract (1) from (3): 5y - 4z = 12.
- Eliminate x between (1) and (2): 7y - 77z = 231.
- Solve those: z = -3, y = 0.
- Plug into one equation: 5x + 4(-3) = -47 → x = -7.