Matematika

Pertanyaan

Dik f(x)=3x +5.jika f(m)= 17 dan f(6)=n maka nilai m+n adalah

1 Jawaban

  • • f ( x ) = 3x + 5

    f ( m ) = 3m + 5

    3m + 5 = 17

    3m = 17 - 5

    3m = 12

    m = 12 / 3

    m = 4

    • f ( x ) = 3x + 5

    f ( n ) = 3n + 5

    f ( 6 ) = 3 ( 6 ) + 5

    f ( 6 ) = 18 + 5

    f ( 6 ) = 23

    = > m + n

    = 4 + 23

    = 27

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