Question

xy-[yz-zx-{yx-(3y-xz)-(xy-zy)}]

Answer 1

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Answer 2

$\frac{solution}{}$

= xy - [ yz - zx - { yz - 3y + xz - xy + 2y } ]

= xy - [ yz - zx - { - y + xz } ]

= xy - [ yz - zx + y - xz ]

= xy - [ yz - 2xz + y ]

= xy - yz + 2xz + y


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