Victor wants to play "Guess My Number." Use the clues below to figure out his number. Each part is a new game.

1. "When you double my number and subtract $\it9$, you get my original number. What's my number? "

   Step 1(a):

   Write out an expression to represent the statement.

   Step 2(a):

   $2x − 9 = x$ Solve for $x$.

   Answer (a):

   $x = 9$

2. "When you double my number and add $\it{5}$, you get $\it{17}$. What's my number?"

   Step 1(b):

   $2x + 5 = 17$ Solve for $x$.