ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Playlist CAHSEE Math Test Prep: Algebra I 30 videos

0
CAHSEE Math 1.1 Algebra I
262 Views

CAHSEE Algebra I: Drill 1, Problem 1. What are some of the properties used to solve this equation? 

1
CAHSEE Math 1.2 Algebra I
236 Views

CAHSEE Math Algebra I: Drill 1, Problem 2. Find the negative reciprocal.

2
CAHSEE Math 1.3 Algebra I
245 Views

Algebra I Drill 1, Problem 3. Solve the equation.

See All

CAHSEE Math 6.1 Algebra I 212 Views


Share It!


Description:

Algebra I: Drill 6, Problem 1. Which of the following is equivalent to the equation?

Language:
English Language

Transcript

00:00

Thank you We sneak shmoop b which of the following

00:05

is equivalent to the equation Why equals a minus x

00:09

over x minus b And here the potential answers causing

00:15

All right let's go down The list is why equals

00:18

quantity a minus x over x minus be the same

00:22

thing as a well let's start with the original equation

00:26

What happens if we multiply both sides by x minus

00:29

b while the left side becomes quantity x minus b

00:33

times Why And the right becomes a minus x sound

00:36

familiar that's because it's the same thing as option a

00:39

So apparently is our answer But wait we have to

00:42

be careful because option d says all of the above

00:45

so let's just do a quick check on another option

00:48

to see if he might be our golden child Is

00:50

there a way to get from option beaten back to

00:52

the original equation How about multiplying the right side by

00:56

negative one over negative one which equals negative ax plus

01:01

a over negative b plus x which equals quantity a

01:03

minus X over quantity x minus b so that's the

01:06

same thing as the original equation Looks like a isn't

01:09

our answer After all let's do c just to be

01:12

one hundred percent positive that he is our answer This

01:14

equation is just asking to be cross multiplied a minus

01:18

X equals quantity x minus b times Why that sounds

01:21

exactly like option a and since we said that option

01:24

a is equal to the original transitive lee speaking option

01:28

c equals the original Our answer is d all of 00:01:31.339 --> [endTime] the above Over No

Related Videos

CAHSEE Math 5.3 Algebra and Functions
2033 Views

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

Solving Systems of Linear Inequalities
11432 Views

How do you solve a system of linear inequalities? Aw, man...and we thought solving a problem like Maria was tough...

Solving Systems of Linear Equations in Three Variables
823 Views

Please note: If starting your own petting zoo, Shmoop recommends you stock it with animals that aren’t quite so likely to bite your hand off. Tha...

Solving Systems of Equations by Substitution
14328 Views

We just love us some alliteration.

Solving Systems of Equations by Elimination
8202 Views

Solving systems of equations by elimination: Survivor-style. Sorry, y... the tribe as spoken.