15x – 9y + 15z; –7x + 7y – 12z and 6x – 12y + z
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15x – 9y + 15z; –7x + 7y – 12z and 6x – 12y + z
= 15x - 9y + 15z - 7x + 7y - 12z + 6x - 12y + z
= 15x - 7x + 6x - 9y + 7y - 12y + 15z - 12z + z
= 14x - 14y + 4z
= 2(7x - 7y + 2z)
Hope it helps you
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= 15x - 9y + 15z - 7x + 7y - 12z + 6x - 12y + z
= 15x - 7x + 6x - 9y + 7y - 12y + 15z - 12z + z
= 14x - 14y + 4z
= 2(7x - 7y + 2z)
Hope it helps you
Mark me as a brainlist please ❤️❤️
Bye ☺️
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