6a-[3a+{4b-(2a-b)+5a}-7b]
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Answered by
4
Answer:
3a-b
Step-by-step explanation:
6a -3a-(4b-2a+b+5a)+7b
= 6a -3b-4b+2a-b-5a+7b
= (6+2-5)a +(-3-4-1+7)b
= 3a - b
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3
Answer:
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