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1 1 18. A=2a-b-4, B=2a-2b-6 olduğuna göre A-B'nin b=2 için değeri kaçtır? A) -4 B)-2 C) 4 D) 6

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b yerine 2 yazalım.

A= 2a-2-4 → 2a-6

B= 2a-4-6 → 2a-10

A-B = 2a-6-(2a-10)

= 2a-6-2a+10

→ -6+10 = 4

Cevap: C

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