18. y = -- 2x - 4 7x +y 2 19. y = x + 6x x-y= 4 20. y = x + 4r – 15 y 25 x
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Solve each system using substitution. Show each step neatly. Thanks!
Transcribed Image Text:18. y =-- 2r – 4
7x + y 2
19. y = x + 6x
x-y= 4
20. y = x + 4r – 15
y 25 x
%3D
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