### Home > AC > Chapter 4 > Lesson 4.1.4 > Problem4-33

4-33.

I am thinking of a number. When I double my number and then subtract the result from five, I get negative one. What is my number? Write and solve an equation.

Assign the number a variable.

Ex. The number = $x$

Put the words into equation format.

When I double my number

Then subtract the result from five

I get negative one

Solve for $x$.

$x = 3$

$2x$

$5 − 2x$

$5 − 2x = −1$