warm up classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54...
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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?
Cornell Notes
Equations Continued
Section 1.8 B
Objective TSWBAT find solutions to equations.
Example 1 What is the solution of each equation? Use
mental math.1. x + 7 = 13
2.
3. x – 4 = 9
126
x
Example 2 What is the solution of 3n + 5 = 26? Use
a table.n 3n + 5 Value of 3n + 5
5 3(5) + 5
6 3(6) + 5
7 3(7) + 5
8 3(8) + 5
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
Assignment Pg. 56-58 # 29-48, 62-64, 67-70
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