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Solve for x, y, z
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x=-y-z+6
Solve x+y+z-6=0 for x.
-y-z+6-y+z-2=0 -y-z+6-y-z+4=0
Substitute -y-z+6 for x in the second and third equation.
y=2 z=5-y
Solve these equations for y and z respectively.
z=5-2
Substitute 2 for y in the equation z=5-y.
z=3
Calculate z from z=5-2.
x=-2-3+6
Substitute 2 for y and 3 for z in the equation x=-y-z+6.
x=1
Calculate x from x=-2-3+6.
x=1 y=2 z=3
The system is now solved.