Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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![For educational purposes, here's a transcription of the text with explanations where necessary:
---
**Solve 13-18 by ELIMINATION.**
**13.**
\[
\begin{align*}
3x + y &= 2 \\
3x + 2y &= 7
\end{align*}
\]
By elimination, subtract the first equation from the second to eliminate \( x \).
**14.** (Partially visible problem; solution not shown)
**16.**
\[
\begin{align*}
2x - 4y &= 8 \hspace{10pt} (i) \\
6x - 12y &= 10 \hspace{5pt} (ii)
\end{align*}
\]
For equation \((ii)\), observe that it can be simplified by dividing each term by 2.
**17.**
\[
\begin{align*}
2x - 3y &= 9 \\
5x - 7y &= 2
\end{align*}
\]
Use elimination to solve these equations by aligning and eliminating variables.
---
**Solve each of the following systems of equations.**
**19.** (Partially visible equations; more information is needed for transcription and explanation)
The image contains no graphs or diagrams.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5104fde3-7f6c-440c-813f-adfaf39f00da%2F88032f0b-017e-4af9-82d0-5c419edbd4a5%2F5kyvdys_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For educational purposes, here's a transcription of the text with explanations where necessary:
---
**Solve 13-18 by ELIMINATION.**
**13.**
\[
\begin{align*}
3x + y &= 2 \\
3x + 2y &= 7
\end{align*}
\]
By elimination, subtract the first equation from the second to eliminate \( x \).
**14.** (Partially visible problem; solution not shown)
**16.**
\[
\begin{align*}
2x - 4y &= 8 \hspace{10pt} (i) \\
6x - 12y &= 10 \hspace{5pt} (ii)
\end{align*}
\]
For equation \((ii)\), observe that it can be simplified by dividing each term by 2.
**17.**
\[
\begin{align*}
2x - 3y &= 9 \\
5x - 7y &= 2
\end{align*}
\]
Use elimination to solve these equations by aligning and eliminating variables.
---
**Solve each of the following systems of equations.**
**19.** (Partially visible equations; more information is needed for transcription and explanation)
The image contains no graphs or diagrams.
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