Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 8 - Section 8.1 - Linear Equations with Two Variables - Exercises - Page 297: 19

Answer

$$(1,2), \quad (0,-5/2), \quad (-3,-16).$$

Work Step by Step

Substitute the value of $x$ and solve for $ y $ to get the ordered pair $ (x,y)$ as follows: $$ 9(1) - 2y = 5 \Longrightarrow -2y=5-9 \Longrightarrow y =2 ,$$ $$ 9(0) - 2y = 5 \Longrightarrow -2y=5 \Longrightarrow y =-5/2 ,$$ $$ 9(-3) - 2y = 5 \Longrightarrow -2y=5+27 \Longrightarrow y =-16 ,$$ Hence, we have the pairs $$(1,2), \quad (0,-5/2), \quad (-3,-16).$$
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