Final answer:
Using algebra tiles to solve the equation 2x + 9 = 11, the solution is x = 2.
Step-by-step explanation:
To solve the equation 2x + 9 = 11 using algebra tiles, you can represent 2x as two x-tiles and 9 as nine 1-tiles. Arrange these tiles on one side of the equation and represent 11 as eleven 1-tiles on the other side.
When you have an equal number of tiles on each side, the equation is balanced. Counting the x-tiles on the left side, you will see that there are 2. Therefore, the solution to the equation is x = 2.
Learn more about Solving equations using algebra tiles