Respuesta :
9514 1404 393
Answer:
x = 7
Step-by-step explanation:
Put -3 where g(x) is and solve the resulting equation for x.
g(x) = -x +4
-3 = -x +4
x -3 = 4 . . . . . . add x (so we can work with a positive coefficient
x = 7 . . . . . . . . add 3