Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 52: 77


See the explanation below.

Work Step by Step

To solve an equation either in one variable let us say for $x$; we will have to find all values of $x$ that must be satisfied for the equation. Substitute the value for $x$ that satisfy the equation as a true solution. Let us take an example: $x=4$ satisfies the expression $4x=16 \implies 4(4)=16$ and $16=16$ Hence, the $4$ is a solution.
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