Repeat the following procedure for the four given numbers Add 3. Double the result. Subtract 4 Divide by 2. Subtract the original selected number The 1st number is 1 N The result is The 2nd number is 4 The result is The 3rd number is 7. The result is The 4th number is 10 The result is a. Write a conjecture that relates the result of the process to the original number selected. The result is. (Simplify your answer.) b. Represent the original number as n and use deductive reasoning to prove the conjecture in part (a).