Simplify the following-
a) 7. a - [b - {a - (b − 1) + 3a}]
(write in step by step process)
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Answer:
11a-2b+1
Step-by-step explanation:
7a - [b - {a - (b - 1) + 3a}]
= 7a - [b - {a - b + 1 + 3a}]
= 7a - [b - {4a - b + 1}]
= 7a - [b - 4a + b - 1]
= 7a - [-4a + 2b - 1]
= 7a + 4a - 2b + 1
= 11a - 2b + 1
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