Solve each system by graphing, substitution, or elimination. If appropriate, write "no solution" or "infinitely many solutions." 13) -7x +5y =-21 14) -5x + y = 8 15x – 3y= 5 -x+ y=-5 15) x+ 3y=-31 3x + 9y=-93 16) 8x- 4y 0 -x+ y= 5

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.4: Solve Systems Of Equations With Three Variables
Problem 195E: How can you tell when a system of three linear equations with three variables has no solution?...
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Solve each system by graphing, substitution, or elimination.
If appropriate, write "no solution" or "infinitely many solutions."
13) -7x + 5y=-21
14) -5x + y= 8
15x -3y = 5
-x+ y=-5
15) x+ 3y=-31
3x + 9y=-93
16) 8x-4y 0
-x+ y= 5
Transcribed Image Text:Solve each system by graphing, substitution, or elimination. If appropriate, write "no solution" or "infinitely many solutions." 13) -7x + 5y=-21 14) -5x + y= 8 15x -3y = 5 -x+ y=-5 15) x+ 3y=-31 3x + 9y=-93 16) 8x-4y 0 -x+ y= 5
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