College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.1 - Page 527: 17

Answer

(7,3)

Work Step by Step

Set y = $\frac{1}{3}x$ + $\frac{2}{3}$ equal to y = $\frac{5}{7}x$ - 2 Solve for x: $\frac{1}{3}x$ - $\frac{5}{7}x$ = -$\frac{2}{3}$ - 2 $\frac{8}{21}x$ = $\frac{8}{3}$ 8x = 56 x = 7 Plug 7 back into y = $\frac{5}{7}x$ - 2 y = $\frac{5}{7}\times7$ - 2 y = 3
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