Report

Warm Up Classify the following equations a true, false, or open? 1. 24 + 18 = 20 + 22 2. 7 ● 8 = 54 3. 2x – 14 = 54 4. Is x = 6 a solution of the equation 32 = 2x + 12. 5. Is x = 3 to the equation 14 = 4x – 4 6. 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? Equations Continued Section 1.8 B Objective TSWBAT find solutions to equations. Example 1 1. 2. What is the solution of each equation? Use mental math. x + 7 = 13 x 12 6 3. x–4=9 Example 2 What is the solution of 3n + 5 = 26? Use a table. n 3n + 5 5 3(5) + 5 6 3(6) + 5 7 3(7) + 5 8 3(8) + 5 Value of 3n + 5 Example 3 What is an estimate of the solution of -6x + 5 = 21? n -6x + 5 = 21 -5 -6(-5) + 5 -4 -6(-4) + 5 -3 -6(-3) + 5 -2 -6(-2) + 5 Value of -6x + 5 = 21 Assignment Pg. 65-66 #27-39, 55-58