Solve for x, y, z
x=a
y=5-3a
z=a
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z=x 3x+y=5 a=z
Reorder the equations.
a=x
Substitute x for z in the equation a=z.
y=-3x+5 x=a
Solve the second equation for y and the third equation for x.
y=-3a+5
Substitute a for x in the equation y=-3x+5.
z=a
Substitute a for x in the equation z=x.
x=a y=-3a+5 z=a
The system is now solved.
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