relasi fungsi g(x+5)=3x-2 .... maka nilai g(2) adalah.. bantuannya kak.. skalian caranya ya

x+5= a
x=a-5
maka
g(a)=3(a-5)-2
g(a) = 3a-17
g(2) = 3(2)-17
g(2) = 6-17
g(2) = -11

Langsung aja y

g(x+5) = 3x - 2
misal :
x + 5 = a
x = a-5

soal menjadi →
g(a) = 3(a-5) - 2
g(a) = 3a - 15 - 2

g(2) = 3(2) - 17
g(2) = 6 - 17
g(2) = -11

Semoga berguna +_+