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 - Page 379: 32


(4,10) substitution method

Work Step by Step

Since one equation is already solved for y, use the substitution method. Substitute 2.5x for y in the second equation. $2(2.5x)+3x=32$ $5x+3x=32$ $8x=32$ $8x\div8=32\div8$ $x=4$ Substitute 4 for x in the first equation. $y=2.5(4)$ $y=10$
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