Subtract (-y + 3x + 5z) from (4y - x - 2z)

  • A 5y - 4x - 7z
  • B 3y + 2x + 3z
  • C -5y + 4x + 7z
  • D 2x - 5y + 3z
waec 2001mathematics

The correct answer is A. 5y - 4x - 7z

(4y - x - 2z) - (-y + 3x + 5z)

= 4y + y - x - 3x - 2z - 5z

= 5y - 4x - 7z

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