6. f(4x - 3) = -12x + 27 a. Rumus fungsi f(x) b. Nilai e jika diketahui, f(2e + 8) = 5 - 7e

a.rumus fungsi f(x)
f(4x-3) = -12x + 27
f(x) = -12(4x-3) + 27
f(x) = -48x + 36 + 27
f(x) = -48x + 63

b. f(2e + 8) = 5 - 7e
f(e) = 5 - 14e - 42
f(e) = -14e - 37
f(1) = -14(1)-37
f(1) = -51
f(e) = -51