Add (4x+6y+3z), (-6x-5y+7z), (9x+5y-11z)
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Answer:
19x+6y-z
Step-by-step explanation:
(4x+6y+3z)+(-6x-5y+7z)+(9x+5y-11z)
(4x-6x+9x)+(6y-5y+5y)+(3z+7z-11z)
19x+6y-z
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