Day 1 4 x 9 5 3 4x 36 5 3 4x 41 3 41 41 4x 44 x 11 4x 36 5 3 What is the solution of the following 3x ID: 806463
Download The PPT/PDF document "Section 2.4 solving equations with vari..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Section 2.4 solving equations with variables on both sides of the equal sign.
Day 1
Slide2Slide34 (x + 9) + 5 = -3
4x + 36 + 5 = -3
4x
+ 41
= -3
- 41 -414x = -44 x = -11
4x + 36 + 5 = -3
What is the solution of the following?
Slide4-
3x
-3x
5x = 15 5 5 x = 3
8x = 3x + 15
8x = 3x
+ 15
What is the solution of the following?
Slide511x + 16 = 2x + 7
11x
+ 16 =
2x
+ 7
-2x -2x
9x
+ 16 = 7
9x +
16
= 7
- 16 - 16
9x =
-9
9 9
x = -1
_______ ________
What is the solution of the following?
Slide6-36x -36x
-29x
- 20
= 9 + 20 + 20-29 x = 29 x = -1
7x – 20 = 36x + 9
7x
– 20 =
36x
+ 9
What is the solution of the following?
Slide7It takes a graphic designer 1.5 h to make one page of a web site. Using new software, the designer could complete each page in 1.25 h, but it takes 8 h to learn the new software. How many web pages would the designer have to make in order to save time using the new software?
It takes a graphic designer
1.5 h to make one page
of a web site. Using new software, the designer could complete each page in 1.25 h, but it takes 8 h to learn the new software. How many web pages would the designer have to make in order to save time using the new software?
Know Need Plan
It takes a graphic designer 1.5 h to make one page of a web site. Using new software, the designer could complete each page in 1.25 h, but it takes 8 h to learn the new software.
How many web pages would the designer have to make in order to save time using the new software?It takes a graphic designer 1.5 h to make one page of a web site. Using new software, the designer could complete each page in 1.25 h, but it takes
8 h to learn the new software
. How many web pages would the designer have to make in order to save time using the new software?
It takes a graphic designer 1.5 h to make one page of a web site. Using
new software,
the designer could complete each page in 1.25 h, but it takes 8 h to learn the new software. How many web pages would the designer have to make in order to save time using the new software?
•1.5 h to make one page• 1.25 hours per page with new software• 8 hours to learn software
Know Need PlanThe number of pages the designer needs to make for the software to save time.
Know Need
Plan
Write and solve an equation.
Let p = the number of pages the designer needs to make.
Design time with new software
Time to learn software.
Current design time.
+
=
1.25 p
81.5p+
=-1.25 p-1.25 p
8
=
.25p
.25
.25
32 = p
The designer must make 33 pages or more in order to save time using the new software.
Book page 105: 10-20, 44, 56
Slide8Assignment: (section 2.4)
Book page 105: 10-20, 44, 56