Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - Chapter Test - Page 227: 20


n=13 and n=-33

Work Step by Step

To solve, first isolate n. Subtract 10 from both sides of the equation. You end up with the first answer n=13. The next answer can be found by making the 23 negative. We do this because we are solving for absolute value. The new equation becomes n+10=-23. Isolate n in this equation. Subtract 10 from both sides. The second answer is n=-33. To check, substitute each solution into x. $\mid$$13+10$$\mid$$=23$ $\mid$$-33+10$$\mid$$=23$
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