Alternative content for non-flash browsers:

## Unit 5 Lesson 21. Simplify 4(5%2b3c)20%2b3c, 20%2b12, 12c%2b20, 20%2b12c 2. educational games Simplify: 2(3y - 2) %2b 3y 9y%2b4, 6y-4, 9y-4, 9y-2 3. tool for teachers Simplify: 3(2y - 4) %2b 2y 8y-4, 8y-12, 12y-4, 4y-12 4. What is 3(3%2b4) 10, 13, 21, 10 |