Solve for x, y, z
x=a
y=a+11
z=a
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x=z z=a
Solve the second equation for x and the third equation for z.
x=a
Substitute a for z in the equation x=z.
y=11+a
Substitute a for x in the equation y=11+x.
x=a y=11+a z=a
The system is now solved.
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