Given the equation 5+x−12=2x−7: Part A. Solve the equation 5+x−12=2x−7. In your final answer, be sure to state the solution and include all of your work.
Part B. Use the values x=−0.5, 0, 1 to prove your solution to the equation 5+x−12=2x−7. In your final answer, include all of your calculations.