Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Section 4.2 - Solving Systems of Linear Equations by Substitution - Exercise Set: 10

Answer

x = -5 y = - 10

Work Step by Step

4x - 3y = 10 y = x - 5 Substitude y for x - 5 to the first equation 4x - 3 ( x - 5 ) = 10 4x - 3x + 15 = 10 use the distributive property simplify x + 15 = 10 x + 15 - 15 = 10 - 15 minus 15 to both sides x = -5 y = -5 - 5 Substitude x for - 5 to the second equation y = - 10
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