Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.2 - The Multiplication Property of Equality - Exercise Set - Page 112: 93

Answer

An equation has all real numbers as its solution when the unknown variable does not disappear from the equation when being solved.

Work Step by Step

i.e. $2x = 4$ will have a real number solution as $x = 2$ but $2x = 1 + 2x$ will not have a real number as the solution as the answer is $ 0 = 1$
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