Jika f (×) = 3× -2 dan f ( a ) = 19 . Maka nilai a adalah….

By Admin ReiPosted on December 8, 2022

Jika f (×) = 3× -2 dan f ( a ) = 19 . Maka nilai a adalah….

F(x)=3x-2
f(a)=19
19=3a-2
19+2=32
21=3a
a=7

$f(a) = 3x - 2 = 19 \ f(a) = 3x = 19 + 2 \ f(a) = 3x = 21 \ x = 7 \ \ a = 7$