Question

Help!!!

Given the function f(x) = x/3 + 7. Find the input for which f(x) = 13

Answer 1

`</p><p>\begin{cases}</p><p>f(x)=x/3+7\\</p><p>f(x)=13</p><p>\end{cases}</p><p>`

We find that

`13=x/3+7\Longrightarrow x=\boxed{18}`

Hope this helps.