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Solve

 

x+y+z=10

−2x−2y−z=−32

3x−2y+2z=−8

 

Enter your answer, in the form (x,y,z).

 Aug 19, 2020
 #1
avatar+970 
+2

x + y + z = 10,

2x + 2y + 2z = 20

 

   2x + 2y + 2z = 20

+ -2x - 2y - z = -32

__________________

z = -12

 

x + y - 12 = 10,

x + y = 22,

3x + 3y = 66

 

3x - 2y - 24 = -8,

3x - 2y = 16

 

   3x + 3y = 66

-  3x - 2y = 16

_________________

5y = 50

y = 10

 

x + 10 - 12 = 10,

x = 12

 

(x. y, z) = (12, 10, -12)

 Aug 19, 2020

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