Question

Subtract x-y-zfrom 2x-2y-3z
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Answer 1

Answer:

(3x – y + z) + (x + y – 3z) – (x – 2y – z)

= 3x – y + z + x + y – 3z – x + 2y + z

= 3x + x – x – y + y + 2y + z + z – 3z

= 3x + 2y – z

Answer 2

$\huge\star\underbrace {\mathtt\purple {A}\mathtt\purple {n}\mathtt\purple {s}\mathtt\purple {w}\mathtt\purple {e}\mathtt\purple {r}}\star\:$

(3x – y + z) + (x + y – 3z) – (x – 2y – z)

= 3x – y + z + x + y – 3z – x + 2y + z

= 3x + x – x – y + y + 2y + z + z – 3z

= 3x + 2y – z