Question

simplify (a+b-c)+(b±c-a)+(c+a-b)
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Answer 1

Answer:

a+b-c+b+c-a+c+a-b =a-a+a+b+b-b+c+c-c

=. a+b+c

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Answer 2

Answer:

=a+b-c+b+c-a+c+a-b

=a-a+a+b+b-b-c+c+c

=a+b+c