3a - [a + b - {a+b+c-(a+b+c+d)}]
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Answered by
9
Answer:
2a - b - d
Step-by-step explanation:
3a - [ a + b - { a + b + c - ( a + b + c + d)}]
3a - [ a + b - { - d}]
3a - [ a + b + d ]
3a - a - b - d
2a - b - d
Answered by
1
Answer:
2a-b-d
Step-by-step explanation:
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