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x + 5y -z = -16  2x + 3y + 4z = 18  x + y -z = -8  splve using elimination

x + 5y -z = -16  2x + 3y + 4z = 18  x + y -z = -8  splve using elimination

Elementary Algebra
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter6: Polynomials
Section6.3: Multiply Polynomials
Problem 6.87TI: Multiply using the Vertical Method: (5m7)(3m6) .
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-x + 5y -z = -16 

2x + 3y + 4z = 18 

x + y -z = -8 

splve using elimination method 

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