section 2.4 solving equations with variables on both sides of the equal sign. day 1

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Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

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Page 1: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

Section 2.4 solving equations with variables on both sides of the equal sign.

Day 1

Page 2: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

4 (x + 9) + 5 = -34x + 36 + 5 = -34x + 41 = -3 - 41 -414x = -44

x = -11

4x + 36 + 5 = -3

What is the solution of the following?

Page 3: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

-3x -3x 5x = 15 5 5 x = 3

8x = 3x + 158x = 3x + 15What is the solution of the following?

Page 4: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

11x + 16 = 2x + 711x + 16 = 2x + 7-2x -2x

9x + 16 = 79x + 16 = 7

- 16 - 16

9x = -9 9 9

x = -1

_______ ________

What is the solution of the following?

Page 5: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

-36x -36x -29x - 20 = 9 + 20 + 20-29 x = 29 x = -1

7x – 20 = 36x + 97x – 20 = 36x + 9What is the solution of the following?

Page 6: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

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?

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 PlanWrite 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 8 1.5p+ =-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.

Page 7: Section 2.4 solving equations with variables on both sides of the equal sign. Day 1

Assignment: (section 2.4)

Book page 105: 10-20, 44, 56

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