Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - 6-3 Solving Systems Using Elimination - Practice and Problem-Solving Exercises: 11

Answer

(3,15)

Work Step by Step

Add the equations to eliminate y. $5x-y=\ 0$ $\underline{3x+y=24}$ $8x\ \ \ \ \ \ \ =24$ Solve for x. $8x=24$ $8x\div8=24\div8$ $x=3$ Substitute 3 for x in either equation and solve for y. $3x+y=24$ $3(3)+y=24$ $9+y-9=24-9$ $y=15$
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