Solve for x, y, z
x=4
y=-2
z=3
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x=-y-z+5
Solve x+y+z=5 for x.
-y-z+5-y+z=9 2\left(-y-z+5\right)+2y+3z=13
Substitute -y-z+5 for x in the second and third equation.
y=-2 z=3
Solve these equations for y and z respectively.
x=-\left(-2\right)-3+5
Substitute -2 for y and 3 for z in the equation x=-y-z+5.
x=4
Calculate x from x=-\left(-2\right)-3+5.
x=4 y=-2 z=3
The system is now solved.
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