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For more information, please see full course syllabus of Algebra 1
For more information, please see full course syllabus of Algebra 1
Algebra 1 Solving Linear Equations in One Variable
Lecture Description
In this lesson we'll learn how to solve equations and look at different types of solutions of linear equations. Also, we'll learn how to deal with fractions and equations. To solve a linear equation we work to isolate the variable on one side of the equation. To help out we use the Addition and Multiplication property of equality. The addition and multiplication property of equality says we may add the same number to both sides of an equation, and we may multiply the same number on both sides of an equation (as long as it is not zero.) In the examples you’ll learn how to easily clear out fractions using multiplication.
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0 answers
Post by Jessica Zhang on March 12, 2022
In example IV don't you add 2 and 4
2 answers
Last reply by: Steven
Tue Mar 17, 2020 5:14 PM
Post by Genevieve Carisse on October 21, 2017
Professor, what is the order to use?
For example, 2x+6=4x-8. Instead of -2x first, why not do -6 or + 8 first? Thank you!
1 answer
Tue Jun 6, 2017 11:22 AM
Post by Carl Kellogg on June 6, 2017
Why did you pursue the path of teaching mathematics?
0 answers
Post by Karen Johnson on March 17, 2017
Example 4, you distributed the 2 to the 1, but not to 4 - 2x?
2 answers
Last reply by: AJH Yang
Mon Sep 21, 2020 12:34 AM
Post by Karen Johnson on March 17, 2017
Eric Smith,
In example 2, you changed the -1 to - 5/5? how did you do this?
1 answer
Fri Aug 26, 2016 7:07 PM
Post by Raymond Hayden on February 23, 2016
Some of your questions have incorrect answers. For example:
40+x=-22 is x=-62,
you have x=-64 as the answer.
There are other errs as well, I just can't call them to mind right now. This is confusing and should be corrected. Thank you.
1 answer
Tue Sep 22, 2015 4:16 PM
Post by Oscar Prado on September 22, 2015
Hi there on your second example how did you have up with 20 times 3/4 is 15?
1 answer
Sat Mar 28, 2015 5:29 PM
Post by antonio cooper on March 26, 2015
Sir, I would like to inform you that on your practice questions (#1)40+X=-22.
Your answer is X=-64, however unless I am mistaken -40+-22 is -62. Thank you for your lessons.
1 answer
Thu Nov 13, 2014 10:31 AM
Post by TAHA sakor on November 13, 2014
Why do we have to multiplication the equation twenty
1 answer
Thu Nov 13, 2014 10:29 AM
Post by TAHA sakor on November 13, 2014
what is consistent
1 answer
Sun Jul 6, 2014 2:27 PM
Post by ajaa trevino on July 2, 2014
In Example 4 why did you multiply everything by 2?
2 answers
Mon Jun 23, 2014 1:25 PM
Post by dzung tran on June 16, 2014
What if someone thought, on Example 1,instead of adding a negative 2x,they divided a negative 2x?The problem would look like x+6=2x-8.
If I continued to solve it, it would turn to 6=x-8, and then to 14=x. I'm not saying that I did this, but I followed the rules and whatever I did to one side, I did to the other. Why is it different when I do a different operation?
1 answer
Thu Jan 9, 2014 3:59 PM
Post by Mohamed Elnaklawi on December 30, 2013
In example one, how did you simplify x+3, and get 6?
1 answer
Thu Jan 9, 2014 4:14 PM
Post by Araksya Fernandes on December 7, 2013
in Example V i got -7 as well, but from 4x-5=9+6x
I said 4x-6x=5+9
-2x=14
x= 14:(-2)
x=-7
If i do it this way, am I assured that I will get the answer right?
2 answers
Tue Sep 3, 2013 6:39 PM
Post by steven schwartzle on August 31, 2013
Do you still use PEMDAS for all Linear Equations??