Solve for k
k=x-z+200
Solve for x
x=z+k-200
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k-x=200-z
Swap sides so that all variable terms are on the left hand side.
k=200-z+x
Add x to both sides.
k-x=200-z
Swap sides so that all variable terms are on the left hand side.
-x=200-z-k
Subtract k from both sides.
-x=200-k-z
The equation is in standard form.
\frac{-x}{-1}=\frac{200-k-z}{-1}
Divide both sides by -1.
x=\frac{200-k-z}{-1}
Dividing by -1 undoes the multiplication by -1.
x=z+k-200
Divide 200-z-k by -1.
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