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or fr3x+4)= 9x-2 olsun ar . f ( 19 )-2 f( 13 ) = ?
lutfen bugun sinavim var ​

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Marianarans

Adım adım açıklama:

3x+4=19. 3x=15 x=5 olur x yerine 5 yazarsak f(19) buluriz

f(19)=9.5-2=====>45-2=43.

3x+4=13. 3x=9. x=3 olur yani x yerine 3 yazarsak f(13) buluruz

f(13)=9.3-2=======>27-2=25

43-(2.25)====43-50=-7

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