1) Show that x = 10, y = 4, z = 7 is a solution to the system below without solving the system formally. x+2y+z= 25 4x-y-5z=1 -2x-y+8z=32

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter8: Linear Functions
Section8.8: Systems Of Linear Equations
Problem 2E
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1) Show that x = 10, y = 4, z = 7 is a solution to the system below without
solving the system formally.
x+2y+z= 25
4x-y-5z=1
-2x- y+8z = 32
Transcribed Image Text:1) Show that x = 10, y = 4, z = 7 is a solution to the system below without solving the system formally. x+2y+z= 25 4x-y-5z=1 -2x- y+8z = 32
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