tolong ya secepatnya!!!

f(x)= (3x+2)/2

f(a) = - 5
(3(a)+2)/2 = - 5
3a+2 = - 5 (2)
3a + 2 = - 10
3a = - 10 - 2
3a = - 12
a = - 12 / 3
a= 4

Semoga membantu