Suatu fungsi f(x) = 2×+9 jika f(x) =25 maka nilai x adalah​

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Suatu fungsi f(x) = 2×+9 jika f(x) =25 maka nilai x adalah​

f(x)=2x + 9

f(x)=2x + 9=25

2x + 9=25

2x=25 – 9

2x=16

x = 16/2

x=8

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Nilai x adalah 8

Materi : Fungsi dan Relasi

f(x) = 2x + 9 [ f(x) = 25 ]

25 = 2x + 9

25 – 9 = 2x

16 = 2x

16/2 = x

8 = x

[ x = 8 ]

Semoga bisa membantu

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