Solve for x
x=100-z^{2}-y
Solve for y
y=100-z^{2}-x
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x+z^{2}=100-y
Subtract y from both sides.
x=100-y-z^{2}
Subtract z^{2} from both sides.
y+z^{2}=100-x
Subtract x from both sides.
y=100-x-z^{2}
Subtract z^{2} from both sides.
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