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WAEC - Mathematics (2001 - No. 22)

Subtract (-y + 3x + 5z) from (4y - x - 2z)
5y - 4x - 7z
3y + 2x + 3z
-5y + 4x + 7z
2x - 5y + 3z

Maelezo

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

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

= 5y - 4x - 7z

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