simplyfy:a-[b+{c-(a-b+c)}]
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Answer:
2 (a - b)
Step-by-step explanation:
a - [b + {c - (a - b + c)}]
= a - [b + {c - a + b - c}]
= a - [b - a + b ]
= a - [2b - a]
= a - 2b + a
= 2a - 2b
= 2 (a - b)
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