Subtract -y 3x 5z from 4y - x - 2z - WAEC Mathematics 2001 Question
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 option: a
(4y - x - 2z) - (-y + 3x + 5z)
= 4y + y - x - 3x - 2z - 5z
= 5y - 4x - 7z
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