a – [b – {a – (b – 1) + 3a}] =?
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Answered by
1
Answer:
a-[b-{a-b+a+3}]
a-[b-{2a-b+3}]
a-[b-2a+b+3]
a-b+2a-b-3
3a-2b-3
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Answered by
5
Answer:
a-[b-{a-(b-1)+3a}]
=a-[b-{a-b+1+3a}]
=a-[b-{4a-b+1}]
=a-[b-4a+b-1]
=a-[2b-4a-1]
=a-2b+4a+1
=5a-2b-1
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