Question

F(x)=2x+1
if f(x)=4, what is the value of x?​

Answer 1

1.5

Explanation:

F(x)=2x+1

For F(x) = 4

F(x)=2x+1 = 4

2x = 4 - 1

2x = 3

Dividing through by 2

2x/2 = 3/2

X = 3/2 = 1.5