SOLUTION: 12x+6y+7z=-35 7x-5y-6z=200 x+y=-10

SOLUTION: 12x+6y+7z=-35 7x-5y-6z=200 x+y=-10

Algebra.Com

Question 1050204: 12x+6y+7z=-35
7x-5y-6z=200
x+y=-10
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use Cramer's rule,

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SO then,

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