Algebra Tiles Activity 1: Adding Integers

NY Standards: 7.A.4; A.A.22EXPLORING SOLVING EQUATIONSx = –x = +1 = –1 =green red yellow redIMPORTANT: Equations are like a scale in balance: to keep it balanced youmust always do the operations on both sides of the equal sign at the same time.Ex. x + 5 = 8=Remove 5 yellow squares from each side. Your answer x = 3.Now you try a few using your algebra tiles.1. x + 4 = 11 2. x + 3 = 103. x + 6 = 9 4. x + 5 = 95. 2x + 2 = 12 + x 6. 4 + 3x = 5 + 2xSometimes you need to group the tiles to find the value of the variable.Think about these examples. Use your tiles and group them to find the values.7. 2x = 8 8. 3x = 129. 4x = 8 10. 5x = 20Combine the two methods to solve these equations.11. 3x + 4 = 10 12. 4x + 5 = 2x + 1113. 8 + 5x = 3x + 12 14. 7x + 1 = 4x + 10=