Q.Diketahui f(x) = 2x + 5, jika f(a) = 11 maka nilai a adalah…____
Penjelasan dengan langkah-langkah:
f(x) = 2x + 5
2a + 5 = 11
2a = 11 – 5
2a = 6
a = 6/2
a = 3
~Fungsi
_______
f(x) = 2x + 5
f(a) = 11
2a + 5 = 11
2a = 11 – 5
2a = 6
a = 6 ÷ 2
a = 3