Evaluate. \[ \int \frac{7}{x} d x \]

Step 1 ：Evaluate the integral \(\int \frac{7}{x} dx\).

Step 2 ：The integral of a function in the form of \(\frac{a}{x}\) is \(a \ln|x|\). In this case, \(a = 7\).

Step 3 ：So, the integral of \(\frac{7}{x}\) is \(7 \ln|x|\).

Step 4 ：Final Answer: The integral of \(\frac{7}{x}\) is \(\boxed{7 \ln|x|}\).