Question

8. Subtract the sum of x + y + z and 2x - 2y – 2z from the sum of 10x + 5y + 3z and 2x + 2y + 4z.









9. From the sum of 3x – y + z and -y -Z, subtract 3x - y - 2. What is the coefficient of x in the result?
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Answer 1

Answer:

The answer is in attachment........