Solve for x
x=\frac{a}{3}
Solve for a
a=3x
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3x=a
The equation is in standard form.
\frac{3x}{3}=\frac{a}{3}
Divide both sides by 3.
x=\frac{a}{3}
Dividing by 3 undoes the multiplication by 3.
a=3x
Swap sides so that all variable terms are on the left hand side.
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