Diketahui f(x) = 3x – 5 jika f(k) = 7 tentukan nilai k​

Diketahui f(x) = 3x – 5 jika f(k) = 7 tentukan nilai k​

Jawaban:

K = 4

Penjelasan dengan langkah-langkah:

_____________________________

f(x) = 3x – 5

f(k) = 7

 

k = ?

 

7 = 3k – 5

– 3k = – 5 – 7

– 3k = – 12

k = – 12 ÷ (- 3)

k = 4

 

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