Simplify the following-
a) 7. a - [b - {a - (b − 1) + 3a}]
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5A-2B+1
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a) 7.a-[b-{a-(b-1)+3a}]
= 7a - b + {a - (b-1) +3a}
= 7a - b + a - (b-1) +3a
= 7a - b + a - b+1 +3a
= 11a - 2b + 1
= 7a - b + {a - (b-1) +3a}
= 7a - b + a - (b-1) +3a
= 7a - b + a - b+1 +3a
= 11a - 2b + 1
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