Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations in Two Variables - Vocabulary, Readiness & Video Check: 7

Answer

You must substitute the given variable into the other equation.

Work Step by Step

After isolating one variable in the given equation, you need to substitute that variable into the other equation. If you try to substitute that variable into the equation that you already have, the answer that you obtain will not be correct.
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