Question

In Exercises 1–22, solve each system of linear equations by substitution. $$ \begin{aligned} & 4 r-s=1 \\ & 8 r-2 s=2 \end{aligned} $$ 

   In Exercises 1–22, solve each system of linear equations by substitution.


$$
\begin{aligned}
& 4 r-s=1 \\
& 8 r-2 s=2
\end{aligned}
$$
College Algebra
College Algebra
Cynthia Y. Young 3rd Edition
Chapter 6, Problem 13 ↓
AceChat toggle button
Close icon
Ace pointing down

Please give Ace some feedback

Your feedback will help us improve your experience

Thumb up icon Thumb down icon
Thanks for your feedback!
Profile picture
In Exercises 1–22, solve each system of linear equations by substitution. $$ \begin{aligned} & 4 r-s=1 \\ & 8 r-2 s=2 \end{aligned} $$
Close icon
Play audio
Feedback
Powered by NumerAI
Ivan Kochetkov Jennifer Stoner
Kathleen Carty verified

Jake Zanazzi and 65 other educators are ready to help you.

Ask a new question
*

Labs

-

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs
*

Recommended Videos

-
solve-each-system-of-linear-equations-by-substitution-beginaligned-4-r-s1-8-r-2-s2-endaligned-2

Solve each system of linear equations by substitution. $$\begin{aligned} &4 r-s=1\\ &8 r-2 s=2 \end{aligned}$$

Precalculus

Systems of Linear Equations and Inequalities

Systems of Linear Equations in Two Variables
in-the-following-exercises-solve-the-systems-of-equations-by-substitution-leftbeginarrayl-4-x2-y8-8-

In the following exercises, solve the systems of equations by substitution. $$ \left\{\begin{array}{l} 4 x+2 y=8 \\ 8 x-y=1 \end{array}\right. $$

Elementary Algebra

Systems of Linear Equations

Solving Systems of Equations by Substitution

solve-each-system-by-substitution-beginalignedy-4-x-18-xy2endaligned

Solve each system by substitution. $$\begin{aligned}&y-4 x=-1\\&8 x+y=2\end{aligned}$$

Beginning and Intermediate Algebra

Solving Systems of Linear Equations

Solving Systems of Linear Equations by Substitution

*

Transcript

-
00:01 Here we're asked to solve this system using substitution.
00:05 But what you can notice is that in the second equation, if you divide every turn by two, you're going to get an equation that is the exact same equation as the first one, which is going to tell you that they're infinitely running solutions to the system.
00:22 Because no matter what you plug in for s and r, as long as this first equation holds, the second equation...
Need help? Use Ace
Ace is your personal tutor. It breaks down any question with clear steps so you can learn.
Start Using Ace
Ace is your personal tutor for learning
Step-by-step explanations
Instant summaries
Summarize YouTube videos
Understand textbook images or PDFs
Study tools like quizzes and flashcards
Listen to your notes as a podcast
Continue solving this problem
Create a free account to:
  • View full step-by-step solution
  • Ask follow-up questions with Ace AI
  • Save progress and study later
Continue Free
Join the community

18,000,000+

Students on Numerade

Trusted by students at 8,000+ universities

Numerade

Get step-by-step video solution
from top educators

Continue with Clever
or



By creating an account, you agree to the Terms of Service and Privacy Policy
Already have an account? Log In

A free answer
just for you

Watch the video solution with this free unlock.

Numerade

Log in to watch this video
...and 100,000,000 more!


EMAIL

PASSWORD

OR
Continue with Clever