Solve for φ
\phi =\frac{a^{2}}{38}
Solve for a (complex solution)
a=-\sqrt{38\phi }
a=\sqrt{38\phi }
Solve for a
a=\sqrt{38\phi }
a=-\sqrt{38\phi }\text{, }\phi \geq 0
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38\phi =a^{2}
Swap sides so that all variable terms are on the left hand side.
\frac{38\phi }{38}=\frac{a^{2}}{38}
Divide both sides by 38.
\phi =\frac{a^{2}}{38}
Dividing by 38 undoes the multiplication by 38.
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