Combine like terms and simplify. i) 7x + 2y - z - ( x + 2y + 3z ) - ( y - 3z )
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Answer:
6x - y - z
Step-by-step explanation:
7x + 2y - z - ( x + 2y + 3z ) - ( y - 3z )
7x + 2y - z - x - 2y - 3z - y + 3z
7x - x + 2y - 2y - y - z - 3z + 3z
6x - y - z
Answered by
0
Answer:
7x+2y-z-(x+2y+3z)-(y-3z)
7x²+4y+4z-(y-3z)
7x²+5y+12z
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