Solve the system by substitution. {-x-y-z=-8 {-4x+4y+5z=7 {2x+2z=4

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.4: Solve Systems Of Equations With Three Variables
Problem 4.69TI: Solve the system by equations: {x+yz=02x+4y2z=63x+6y3z=9 .
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Solve the system by substitution. 

{-x-y-z=-8  

{-4x+4y+5z=7

{2x+2z=4

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