Answer
$$x=2$$
Work Step by Step
In $\mathbb{Z}_3$, $2\cdot2=1$. Plugging $x=2$ into the equation $2x=1$, it is clear that there is a solution to the equation.
Linear Algebra: A Modern Introduction
by Poole, David
Published by
Cengage Learning
ISBN 10:
1285463242
ISBN 13:
978-1-28546-324-7
Chapter 1 - Vectors - 1.1 The Geometry and Algebra of Vectors - Exercises 1.1 - Page 17: 46
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