Solve for x
x=2z
Solve for z
z=\frac{x}{2}
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\frac{x}{2}=z
Swap sides so that all variable terms are on the left hand side.
\frac{1}{2}x=z
The equation is in standard form.
\frac{\frac{1}{2}x}{\frac{1}{2}}=\frac{z}{\frac{1}{2}}
Multiply both sides by 2.
x=\frac{z}{\frac{1}{2}}
Dividing by \frac{1}{2} undoes the multiplication by \frac{1}{2}.
x=2z
Divide z by \frac{1}{2} by multiplying z by the reciprocal of \frac{1}{2}.
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