Solve for x
x=\frac{9}{z}
z\neq 0
Solve for z
z=\frac{9}{x}
x\neq 0
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18-xz=9
Swap sides so that all variable terms are on the left hand side.
-xz=9-18
Subtract 18 from both sides.
-xz=-9
Subtract 18 from 9 to get -9.
\left(-z\right)x=-9
The equation is in standard form.
\frac{\left(-z\right)x}{-z}=-\frac{9}{-z}
Divide both sides by -z.
x=-\frac{9}{-z}
Dividing by -z undoes the multiplication by -z.
x=\frac{9}{z}
Divide -9 by -z.
18-xz=9
Swap sides so that all variable terms are on the left hand side.
-xz=9-18
Subtract 18 from both sides.
-xz=-9
Subtract 18 from 9 to get -9.
\left(-x\right)z=-9
The equation is in standard form.
\frac{\left(-x\right)z}{-x}=-\frac{9}{-x}
Divide both sides by -x.
z=-\frac{9}{-x}
Dividing by -x undoes the multiplication by -x.
z=\frac{9}{x}
Divide -9 by -x.
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