Prealgebra (7th Edition)

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

Chapter 1 - Test: 34


10 is an answer to the equation.

Work Step by Step

Solve for n in the equation. n+20 = 4n -10 n + 20 = 4n - 10 +10 +10 n+30=4n -n -n 30=3n Divide both sides by 3 to isolate the variable. 30/3 = 3n/3 10 = n The set of potential answers includes 10. This is the answer. You can also plug in 0 and 20 to double-check. Of the 3 solutions, only 10 satisfies the equation.
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