Solve using the substitution method. Use a graphing calculator to check your answer. a. x + y
Question:
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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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
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Related Book For 
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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