Question

Diketahui fungsi f:x= 2x-3,tentukan nilai a jika f(a) =5

Answer 1

F(a)=2.aX-3=5
2a=5+3
2a=8
a=8:2
a=4

Answer 2

F (x)= 2x - 3
f(a) = 5
f(a) = 2.a -3= 5
= 2a - 3 = 5
= 2 a = 8
= a = 8/2
= a = 4

jadi nilai a adalah 4.