Solve for a
a=\frac{x}{e^{x}}
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e^{x}a=x
The equation is in standard form.
\frac{e^{x}a}{e^{x}}=\frac{x}{e^{x}}
Divide both sides by e^{x}.
a=\frac{x}{e^{x}}
Dividing by e^{x} undoes the multiplication by e^{x}.
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