Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.3 - More on Percents and Problem Solving - Problem Set 4.3: 21

Answer

The solution of this equation is x = 2200.

Work Step by Step

0.09x = 550 - 0.11(5400 - x) Use the distributive property to obtain: 0.09x = 550 - 594 + 0.11x In order to solve for x, we first need to get all of the terms with an x in them on the same side of the equation: Thus, we obtain: 0.09x - 0.11x = 550 - 594 -0.02x = -44 Divide both sides by -0.02 x = 2200 The solution of this equation is x = 2200.
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