ditentukan f(x)=6x-5dan f(a)=19 nilai a adalah

f (x) = 6x - 5
f ( a ) = 19

6x - 5 = f (a)
6x - 5 = 19
6x = 19 + 5
x = 24 : 6
x = 4

Jawab = x = a = 4

==Jawaban==

f(x)= 6x-5
f(a) = 6a-5 = 19
⇔ 6a = 19 + 5
⇔ 6a = 24
⇔ a = 24/6
⇔ a = 4