Question 65553: x+y+z=8
x-y-z=-4
-x+y-z=-8
Please solve this system of equations.
Answer by chitra(359)  (Show Source):
You can put this solution on YOUR website! The given system of equations are:
x + y + z = 8 -----------(1)
x - y - z = -4 --------- (2)
-x + y - z = -8 -----------(3)
Adding (1) and (2), we get:
2x = 4
this implies x = 2
Adding (2) and (3), we get:
-2z = -12
z = 6
Substituting the values of x and zin (1), we get y = 0
Thus the solution.
x = 2, y = 0 and z = 6
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