SOLUTION: Solve the system by elimination. -x-5y-5z=2 4x-5y+4z=19 x+5y-z=-20

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Question 1023813: Solve the system by elimination.
-x-5y-5z=2
4x-5y+4z=19
x+5y-z=-20

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Subtract eq. 1 from eq. 2,

3.
.
.
Add eq. 1 to eq. 3,



Then from eq. 3,



Then from eq. 3,




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