Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 4 - Review Exercises: 39

Answer

{($\frac{1}{2}$,-2)}

Work Step by Step

y=2x-3 Plug this value for y into the other equation y=-2x-1 2x-3=-2x-1 2x+2x-3=-2x+2x-1 4x-3=-1 4x-3+3=-1+3 4x=2 x=$\frac{2}{4}$ x=$\frac{1}{2}$ Plug this value for x into the first equation to find y y=2($\frac{1}{2}$)-3 y=1-3 y=-2 Therefore the solution is {($\frac{1}{2}$,-2)}
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