11. (a + b)} - a - b
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Answered by
0
Answer:
= (a + b)} - a - b
= a + b - a - b
= 0
Answered by
2
Answer:
0
Step-by-step explanation:
(a + b) - a - b
= a + b - a - b
= a - a + b - b
= 0 + 0
= 0
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