3y + 4z - 6x, 2x - 4y + z and 5z - 8y - x.
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Answered by
1
Answer:
Adding the given terms, we have
(i) 7abc + (- 5abc) + (9 abc) + (- 8abc)
= 7abc - 5abc + 9abc - 8abc
= (7 - 5 + 9 - 8)abc
= (16 - 13)abc
= 3abc
(ii) 2x2y + (- 4x2y) + 6x2y + (- 5x2y)
= 2x2y - 4x2y + 6x2y - 5x2y
= (2 - 4 + 6 - 5)x2y
= (8 - 9)x2y
= -x2y
Answered by
4
Answer:
3y + 4z - 6x + 2x - 4y + z + 5z -8y - x
3y - 4y - 8y + 4z +z + 5z - 6x + 2x - x
-9y + 10z - 5x
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