### Home > CC2 > Chapter 6 > Lesson 6.2.2 > Problem6-68

6-68.

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 $\mathit{9}$, you get my original number. What is my number?”

Write out an expression to represent the statement.

$2x−9=x$
Solve for $x$.

$x=9$

2. When you double my number and add $\mathit{5}$, you get $\mathit{17}$. What is my number?

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