### Home > MC2 > Chapter 6 > Lesson 6.2.2 > Problem 6-89

6-89.

Refer to the Math Notes from Lesson 6.2.1 for help.

Count the number of *x*-tiles and unit tiles on each sideof the equation, then turn that into an equation.

Remove matching sets of tiles from each side.

Now you are left with 3 *x*-tiles on the left and 9 unit tileson the right. Divide each side by 3 to find the value of *x*.

*x* = 3