PLZ ANSWER. I'M DOING HOMEWORK AT MIDNIGHT AND WANT TO SLEEP BUT I WANT THIS DONE FIRST

f: initial value of 400 decreasing at a rate of 14%
g: initial value of 30 increasing at a rate of 14%

Write the exponential function for f.

f(x)=400(0.86)^x

Write the exponential function for g.

g(x)=30(1.14)^x

The value of x that makes f(x)=(x) is x=___.
(Round to the nearest integer as needed.)