Solve the system by back substitution. - 2x - 4y -z -3w = - 5y - 30z - 10w = - 40 -4z -4w = -8 5w = 15 The solution set is {(O00D) (Type an integer or a simplified fraction.)

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.4: Powers Of Monimials
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Solve the system by back substitution.
- 2x - 4y -z - 3w =
- 5y - 30z - 10w = - 40
-4z - 4w =
5w =
1
- 8
15
The solution set is {O0OD) (Type an integer or a simplified fraction.)
Transcribed Image Text:Solve the system by back substitution. - 2x - 4y -z - 3w = - 5y - 30z - 10w = - 40 -4z - 4w = 5w = 1 - 8 15 The solution set is {O0OD) (Type an integer or a simplified fraction.)
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