x-y+z=-8 y=4 x+y-z=6 Find the ordered Triple of these equations

find the ordered triple of these equations
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1 Answer

Add the 1st and 3rd equations: 2x=-2, so x=-1.

The 2nd equation y=4, so we can substitute for x and y in either the 1st or 3rd equations:

-1-4+z=-8, z=5-8=-3.

Ordered set (-1,4,-3).

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find the ordered triple of these equations.
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