Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.10 Write Quadratic Functions and Models - 4.10 Exercises - Mixed Review - Page 315: 63

Answer

See below

Work Step by Step

Given: $4x+5y=2\\-3x+2y=33$ Multiply the first equation by $3$: $12x+15y=6$ Multiply the second equation by $4$: $-12x+8y=132$ Then combine $23y=138\\ \rightarrow y=6$ Substitute: $4x+5(6)=2\\ \rightarrow 4x=-28\\ \rightarrow x=-7$
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