Find the value of x that makes m parallel to n when m./4 = 5x – 17 and m26= 4x + 3

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
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### Parallel Lines and Angle Measures

In the diagram provided, three lines \( m \), \( n \), and \( t \) intersect, creating eight distinct angles labeled 1 through 8.

The lines are arranged as follows:
- Line \( m \) and Line \( t \) are intersected by Line \( n \), forming a set of angles at each intersection.

### Given Information:
We need to determine the value of \( x \) that makes lines \( m \) and \( n \) parallel. Two specific angle measures are provided:
- \( m \angle 4 = 5x - 17 \)
- \( m \angle 6 = 4x + 3 \)

The relationships of the angles formed suggest that if \( m \) and \( n \) are to be parallel, \( \angle 4 \) and \( \angle 6 \) are alternate interior angles. For \( m \parallel n \), these alternate interior angles must be equal.

### To Find:
Determine the value of \( x \) such that \( m \parallel n \).

### Solution:
Set \( m \angle 4 \) equal to \( m \angle 6 \):

\[ 
5x - 17 = 4x + 3 
\]

Solving for \( x \):
\[ 
5x - 4x - 17 = 3 
\]
\[ 
x - 17 = 3 
\]
\[ 
x = 20 
\]

### Conclusion:
The value of \( x \) that will make lines \( m \) parallel to line \( n \) is \( \boxed{20} \).
Transcribed Image Text:### Parallel Lines and Angle Measures In the diagram provided, three lines \( m \), \( n \), and \( t \) intersect, creating eight distinct angles labeled 1 through 8. The lines are arranged as follows: - Line \( m \) and Line \( t \) are intersected by Line \( n \), forming a set of angles at each intersection. ### Given Information: We need to determine the value of \( x \) that makes lines \( m \) and \( n \) parallel. Two specific angle measures are provided: - \( m \angle 4 = 5x - 17 \) - \( m \angle 6 = 4x + 3 \) The relationships of the angles formed suggest that if \( m \) and \( n \) are to be parallel, \( \angle 4 \) and \( \angle 6 \) are alternate interior angles. For \( m \parallel n \), these alternate interior angles must be equal. ### To Find: Determine the value of \( x \) such that \( m \parallel n \). ### Solution: Set \( m \angle 4 \) equal to \( m \angle 6 \): \[ 5x - 17 = 4x + 3 \] Solving for \( x \): \[ 5x - 4x - 17 = 3 \] \[ x - 17 = 3 \] \[ x = 20 \] ### Conclusion: The value of \( x \) that will make lines \( m \) parallel to line \( n \) is \( \boxed{20} \).
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