matrices. -x = 2 + 5y + 5z -5y + 4z = 19 - 4x x + 5y - z = -20

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section6.3: Inverses Of Matrices And Matrix Equations
Problem 49E
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Solve the system of linear equations using matrices.

-x = 2 + 5y + 5z
-5y + 4z = 19 - 4x
x + 5y - z = -20


Rewrite each equation in form ax+by+cz=d

______ x +_______  y +_______  z=__________ 

 _______x + ________ y + _______ z=________ 

_________ x +_________  y + _________ z= __________

Use your calculator to find x,y and z

x= 

y= 

z= 

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