SOLUTION: x + y + z = 2 x - y + z = 1 x - y - z = 1 solve for x, y and z

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Question 187011: x + y + z = 2
x - y + z = 1
x - y - z = 1
solve for x, y and z
Answer by sowmya(32) About Me  (Show Source):
You can put this solution on YOUR website!
equation 1 + equation 2
=> 2(x+z) = 3
x+z = 3/2
equation 1 +equation3
=>2x = 3
=> x = 3/2
equation 2+quation3
=> 2(x-y) =1
x-y = 1/2
y = 1
equationj 1 substitute the values of x and y
=>z=-1/2