Respuesta :
Answer:
2x - 14y + 9z
Step-by-step explanation:
5x - 7y + 6z - (3x + 7y - 3z)
5x - 7y + 6z - 3x - 7y + 3z
(5x - 3x) + (-7y - 7y) + (6z + 3z)
2x - 14y + 9z
2x - 14y + 9z
Answer:
2x - 14y + 9z
Step-by-step explanation:
5x - 7y + 6z - (3x + 7y - 3z)
5x - 7y + 6z - 3x - 7y + 3z
(5x - 3x) + (-7y - 7y) + (6z + 3z)
2x - 14y + 9z
2x - 14y + 9z