Solve using the substitution method. Use a graphing calculator to check your answer. a. x + y

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Solve using the substitution method. Use a graphing calculator to check your answer.
a. x + y = 9,
2x - 3y = -2
b. 3x - y = 5,
x + y = 1/2
c. x - 2y = 7,
x = y + 4

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College Algebra Graphs and Models

ISBN: 978-0321845405

5th edition

Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

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Question Posted: Apr 12, 2016 09:52 AM

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Solve using the substitution method. Use a graphing calculator to check your answer. a. x + y

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a x y 9 1 2x 3y 2 2 Solve equation 1 for either x or y We choose to solve f...View the full answer

College Algebra Graphs and Models

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