What variable do you eliminate, and what do you multiply the equation (s) by? 5x + y = 9 10x - 7y = -18

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter1: Foundations
Section1.2: Use The Language Of Algebra
Problem 1.26TI: Determine if each is an expression or an equation: (a)y214 (b)4x6=22 .
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What variable do you eliminate, and what do you multiply the equation (s) by? 5x + y = 9 10x - 7y = -18 

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