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Verified answer
Mapel : MatematikaBab : Fungsi
Diketahui :
f(x) = 2x - 5
f(a) = 11
Ditanyakan :
Nilai a = .... ?
Penyelesaian :
f(x) = 2x - 5
f(a) = 2a - 5
11 = 2a - 5
2a = 11 + 5
2a = 16
a = 16/2
a = 8
Jadi, nilai a adalah 8
Verified answer
F(x) = 2x - 5f(a) = 2x - 5 = 11
f(a) = 2x = 11+ 5
f(a) = 2x = 16
f(a) = x = 16/2
f(a) = 8
maka nilai a adalah 8