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