Diketahui fungsi f(2x+1)=6x-3. Nilai f(-3) adalah..... tolong pakai caranyaa.

Fungsi

f(2x+1) = 6x-3
f(-3) = ?

2x+1 = -3
2x = -3-1
2x = -4
x = -4 : 2
x = -2

f(-3) = 6x - 3
= 6 (-2) - 3
= -12 - 3
= -15

*semoga membantu. sukses selalu ^_^

f(2x+1) = 6x+3
f(x)= 6(2x+1)+3
f(x)= 12x +6 +3
f(x)= 12x + 9
f(-3)= 12(-3) + 9
f(-3)= -36 + 9
f(-3)= -27

maaf yah kalo slh