Question

f(x) =2x if f(x) =29 , x=

Answer 1

Given:

$f(x)=2x$$\begin{gathered} \text{if } \\ f(x)=29 \end{gathered}$

so the value of x is:

$\begin{gathered} f(x)=2x \\ f(x)=29 \\ f(x)=f(x) \\ 2x=29 \\ x=\frac{29}{2} \\ x=14.5 \end{gathered}$

So the value of x is 14.5