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Here is Question .....

x + y + z = 2

x - y + z = 1

x - y - z = 1

solve for x, y and z

8 years ago

raj kaushik
26 Points

This Question is quite simple ....i solved it ...

check out the solution

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

8 years ago
anirudh alameluvari
23 Points

x+y+z = 2  ;   x-y+z=1 ;  x-y-z=1

x+y+z+x-y+z=3

2(x+z) = 3

x+z=3/2

x+y+z+x-y-z = 3

2x =3

x=3/2

3/2+z=3/2

z=0

x-y-z=1

3/2-y-0=1

y=1/2

(x,y,z) = (3/2,1/2,0)

8 years ago
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