Diketahui f(3x-4)=6x-1. Jika f(a)=-1, maka nilai a adalah...

Materi : Persamaan Linear
Kelas : XI

f(3x + 4) = 6x - 1
= 6(3x + 4) - 1
= 18x + 24 - 1
= 18x + 23

→ f(x) = ax + b = c
f(x) = 18x + 23 = c
f(a) = 18(a) + 23 = -1
f(a) = 18a = -1-23
= 18a = -24
= a = -24/18
= a = -4/3 → Adalah jawabannya


Semoga Mbantu...