Solve for f
f=\frac{x^{2}}{4}+С
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2f=\int x\mathrm{d}x
Swap sides so that all variable terms are on the left hand side.
2f=\frac{x^{2}}{2}+С
The equation is in standard form.
\frac{2f}{2}=\frac{\frac{x^{2}}{2}+С}{2}
Divide both sides by 2.
f=\frac{\frac{x^{2}}{2}+С}{2}
Dividing by 2 undoes the multiplication by 2.
f=\frac{x^{2}}{4}+\frac{С}{2}
Divide \frac{x^{2}}{2}+С by 2.
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