Respuesta :
Answer:
x - y + z = 8
2x +3y -z= -2
3x - 2y -9z = 9
Step-by-step explanation:
[1 - 1 1 8]
[2 3 -1 -2]
[3 -2 -9 9]
Answer:
Its A. If a = b, then a + c = b + c.
And C. If w + 2 = 7, then w + 2-2 = 7- 2.
Answer:
x - y + z = 8
2x +3y -z= -2
3x - 2y -9z = 9
Step-by-step explanation:
[1 - 1 1 8]
[2 3 -1 -2]
[3 -2 -9 9]
Answer:
Its A. If a = b, then a + c = b + c.
And C. If w + 2 = 7, then w + 2-2 = 7- 2.