Question

simplify: 3a-(a+b+c-(a+b+c+d)
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Answer 1

Answer:

3a-(a+b+c-(a+b+c+d)

=3a-(a+b+c-a-b-c-d)

=3a-(-d)

=3a+d

Step-by-step explanation:

we need to start by the inner most bracket and then just simplify without leaving the symbols.

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