Question

Find the inverse

f(x)=2x+4

Answer 1

f(x) = 2x +4
For inverse, switch x & y
x = 2*y +4
y = x/2 -2

Answer 2

f(x) = 2x + 4
y = 2x + 4
y - 4 = 2x
x = (y - 4)/2

g(y) = (y - 4)/2
g(x) = (x - 4)/2

where g(x) is the inverse