Hi there! The answer is e^5
[tex]5 + 7 ln(x) = 40[/tex]
Subtract 5.
[tex]7 ln(x) = 35[/tex]
Divide by 7.
[tex] ln(x) = 5[/tex]
Keep in mind.
[tex] ln(x) = log_{e}(x) [/tex]
Therefore, we get the following.
[tex] ln(x) = 5 \: \: gives \\ x = {e}^{5} [/tex]
Hence, the answer is e^5.
