Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.7 Solving Equations with Several Steps - 9.7 Exercises: 46

Answer

$x=4$

Work Step by Step

Step 1. Combine like terms on the right side of the equation. $28=x+6x=(1+6)x=7x$ Step 2. Divide both sides by 7. $\frac{28}{7}=\frac{7x}{7}$ $x=4$
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