Subtract (-y + 3x + 5z) from (4y - x - 2z)
MATHEMATICS
WAEC 2001
Subtract (-y + 3x + 5z) from (4y - x - 2z)
- A. 5y - 4x - 7z
- B. 3y + 2x + 3z
- C. -5y + 4x + 7z
- D. 2x - 5y + 3z
Correct Answer: A. 5y - 4x - 7z
Explanation
(4y - x - 2z) - (-y + 3x + 5z)
= 4y + y - x - 3x - 2z - 5z
= 5y - 4x - 7z
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