1. Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4. An art student wants to make a model of the Mayan Great Ball Court in Chichén Itzá, Mexico. The length of the court is 2.4 times its width. The length of the student’s model is 54 in. What should the width of the model be?

2. Cornell Notes

3. Equations Continued Section 1.8 B

4. Objective  TSWBAT find solutions to equations.

5. Example 1  What is the solution of each equation? Use mental math. 1. x + 7 = 13 2. 3. x – 4 = 9

6. Example 2  What is the solution of 3n + 5 = 26? Use a table. n3n + 5Value of 3n + 5 53(5) + 5 63(6) + 5 73(7) + 5 83(8) + 5

7. Example 3  What is an estimate of the solution of -6x + 5 = 21? n-6x + 5 = 21Value of -6x + 5 = 21 -5-6(-5) + 5 -4-6(-4) + 5 -3-6(-3) + 5 -2-6(-2) + 5

8. Assignment  Pg. 56-58 # 29-48, 62-64, 67-70