Lisa wrote the expression (3+6x) - 2(x 1) 5. She simplified the expression using the following steps: Step one: 3(1 x) - 2(x 1) 5 Step two: 3(x 1) - 2(x 1) 5 Step three: (x 1) 5 Step four: x 6 Lisa says that (3x 6x) - 2(x 1) 5 = x 6. Lisa's statement is incorrect. In which step did Lisa first make the mistake, and what is the correct expression for that step? Show your work.