(3x+4y+5z)+(3x-7y-z)-(7x+6y)
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Answered by
1
Answer:
3x+4y+5z+3x-7y-z-7x-6y
-x-9y+4z
Answered by
0
Answer:
3x+4y+5z-3x+7y+z+7x-6y=7x+9y+4z
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