SOLUTION: 3/x+2/y-2/z=-1 2/x-12/y+5/z=4 7/x+2/y-1/z=1

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Question 1015423: 3/x+2/y-2/z=-1
2/x-12/y+5/z=4
7/x+2/y-1/z=1
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
Introduce new variables 

u = 1%2Fx, v = 1%2Fy and w = 1%2Fz and then solve the ordinary linear system of three equations in three unknowns.


For examples of this kind see the lessons 

  Solving systems of non-linear equations in two unknowns using the Cramer's rule  and

  Solving systems of non-linear equations in three unknowns using Cramer's rule

in this site.