1. BELL WORK X - 7 = -1 X - 4 = 66 8 = X - 2 -8 = X - 2 X = 6 X = 70 X = 10 X = -6

2. MODELING THE EQUATION USING A BAR DIAGRAM

3. 253 Competitors

4. Use the model to write and solve an equation X + 134 = 253 or 134 + x = 253 X = 119 boys

5. Use the model to write and solve an equation X – 15 = 119 X = 134 girls

6. Use the model to write and solve an equation X + 15 = 134 X = 119 boys

7. Use the model to write and solve an equation X + 119 = 134 X = 15 more girls

8. A used book costs $17 less than the same book new. The used book costs $9. Use a bar diagram to write and solve an equation to find out how much the new book cost. ? New book Used book 17 9 X – 9 = 17 X = $26 for a new book

9. Use a bar diagram to write and solve an equation to find out how many hits he got in the second game.. X – 1 = 5 X = 4 hits in the second game

10. USE THE MODEL TO WRITE AND SOLVE AN EQUATION X + 4 = 7 X = 3

11. USE THE MODEL TO WRITE AND SOLVE AN EQUATION X + 2 = 6 X = 4