Can someone please explain it to me ASAP?!!! I had error in write the integral in terms of u. I said 1/u but it's wrong what is supposed to be? I need help for the rest of it. This is substituted rule

Use a change of variables or the accompanying table to evaluate the following indefinite integral. 1 13x - 7 dx Click the icon to view the table of general integration formulas. Ca Determine a change of variables from x to u. Choose the correct answer below. A. U= 13x - 7 sfor O B. u= 13 O C. u= 13x urin OD. U= - 1 13x - 7 es Write the integral in terms of u. 13x - 7 dx = du u Enter your answer in the answer box nen click Check