Solve for a
a=\frac{y}{\sqrt{\pi }}
Solve for y
y=\sqrt{\pi }a
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a\sqrt{\pi }=y
Swap sides so that all variable terms are on the left hand side.
\sqrt{\pi }a=y
The equation is in standard form.
\frac{\sqrt{\pi }a}{\sqrt{\pi }}=\frac{y}{\sqrt{\pi }}
Divide both sides by \sqrt{\pi }.
a=\frac{y}{\sqrt{\pi }}
Dividing by \sqrt{\pi } undoes the multiplication by \sqrt{\pi }.
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