Upcoming SlideShare
×

# Algebra 1 unit_1_section_1_ppt_notes_3

669 views

Published on

Published in: Technology, Education
1 Like
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

Views
Total views
669
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
16
0
Likes
1
Embeds 0
No embeds

No notes for slide

### Algebra 1 unit_1_section_1_ppt_notes_3

1. 1. – ALGEBRA I – UNIT 1 – Section 1 Solving Equations Solving equations is fun and easy… In this section, we will introduce the rules for solving… <ul><li>equations </li></ul>I call these rules the… <ul><li>Three Golden Rules </li></ul>
2. 2. EQUATIONS An equation is a statement formed by placing an equal sign between two numerical or variables expressions. Example of equations include… An equation that contains a variable is sometimes referred to as an OPEN SENTENCE. How do you define “equation”?
3. 3. EQUATIONS DOMAIN – The domain is the fancy name for set of answers that can be substituted in for the variable. Here are a few more terms associated with equations… SOLUTION – The solution is the answer to the equation. Other synonyms for solution include: ANSWER, ROOT, SOLUTION SET, etc.
4. 4. THREE GOLDEN RULES The “Three Golden Rules” for solving equations allow you to solve ANY equation. The “Three Golden Rules” are: 1) The goal of solving the equation is to get the VARIABLE BY ITSELF.
5. 5. THREE GOLDEN RULES The “Three Golden Rules” for solving equations allow you to solve ANY equation. The “Three Golden Rules” are: 2) Do the OPPOSITE OPERATION to get the variable by itself.
6. 6. THREE GOLDEN RULES The “Three Golden Rules” for solving equations allow you to solve ANY equation. The “Three Golden Rules” are: 3) To keep the equation balanced, do the SAME THING TO BOTH SIDES.
7. 7. 1) Get the “x” by itself 3) Do the same thing to both sides. EXAMPLE Check your work 2) You need to make –19 go away by doing the opposite operation.
8. 8. CHECK YOUR WORK! Anytime you solve an equation, you can check your answer by plugging it into the original problem and simplifying. I cannot emphasize enough how important it is to check your work.