a-[b-c-{a-(c-b-a)}],simplify it.
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Answered by
1
Answer:
3a
Step-by-step explanation:
==: a - [b - c - {a - (c - b - a)}]
==: a - [b - c - {a - c + b + a}]
==: a - [b - c - {2a - c + b}]
==: a - [b - c - 2a + c - b]
==: a - [-2a]
==: a + 2a
==: 3a
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Answered by
0
Step-by-step explanation:
a-(b-c-(a-(c-b-a))
a-(b-c-(a-c-(-b)-(-a))
a-(b-c-(a-c+b-(-a))
a-(b-c-(a-c+b+a))
a-(b-c-(2a-c+b))
a-(b-c-2a-(-c)-b)
a-(b-c-2a+c-b)
a-(b-2a-b)
a-(-2a)
a-2a
3a
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