Question 3

Solve for $$x, y, z$$ from the following simultaneous equations. 

$$x^2 + xy + xz - x = 7$$ 

$$y^2 + yz + yx - y = -14$$

$$z^2 + zx + zy - z = 49$$


Correct Answer: x=-1 y=2 z=-7 or x=7/6 y=-7/3 z=49/6

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