SOLUTION: Solve this system of equations 5x+5y-4z=6 15x+15y-12z=8 2x-5y+5z=4 A. there is one solution the solution is (, , ) type exact answers in simplified form B. there are i

Question 630210: Solve this system of equations
5x+5y-4z=6
15x+15y-12z=8
2x-5y+5z=4
A. there is one solution the solution is (, , )
type exact answers in simplified form
B. there are infinitely many solutions the solutions are ? where z is any real number
C. There is no solution
Screenshot of question here http://oi46.tinypic.com/20toscy.jpg
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

5x+5y-4z=6

 15x+15y-12z=8

 2x-5y+5z=4 

checking the value of the Determinant:

D =  =

 = 0

C. There is no solution 

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