Solve for x
x=\frac{a}{20}
Solve for a
a=20x
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20x=a
The equation is in standard form.
\frac{20x}{20}=\frac{a}{20}
Divide both sides by 20.
x=\frac{a}{20}
Dividing by 20 undoes the multiplication by 20.
a=20x
Swap sides so that all variable terms are on the left hand side.
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