Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.8 - Introduction to Variables, Algebraic Expressions, and Equations - Practice: 7


6 is a solution.

Work Step by Step

To determine which of the numbers in the set [10,6,8] solves the equation, isolate the variable. $5n+4=34$ Subtract 4 from each side. $5n=30$ We already know the number has to be a factor of 30, so you can eliminate 8 at this point. Now divide both sides by 5. $n=6$ Bingo!
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