16. 2a - [4b - {4a - (3b - 2a + 2b)}]
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Answer:
<[. is second bracate
Step-by-step explanation:
2a-[4b-<[4a-(3b-2a+2b)]>]
=2a-[4b-<[4a-5b-2a]>]
=2a-[4b-<[2a-5b]>
=2a-[4b-2a-5b]
=2a-[-2a-b]
=2a+2a-b
=4a-b
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