Jeff B.

asked • 09/09/18

When you have a 4x4 matrix that includes only 3 variable in the system, which variable is d?

Ex:
x + y − z = −5
x − y − 7z = 7
0.75x − 0.5y + 0.25z = 18
x + y + z = 1
 
If a=x, b=y, and c=z, what is d? 
 
 

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