6a-[3b-{5a-(3c-2b) +4c-3(a+2b-3c)}] =?
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Answer:
8a-b+6c
Step-by-step explanation:
6a-[3b-{5a-(3c-2b)+4c-3(a+2b-3c)}]
=6a-[3b-{5a-3c+2b+4c-3a-6b+9c}]
=6a-[3b-{2a-4b+6c}]
=6a-[3b-2a+4b-6c}]
=6a-[-2a+b-6c]
=6a+2a-b+6c
=8a-b+6c
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