Solve for J (complex solution)
\left\{\begin{matrix}J=\frac{2a}{qrx}\text{, }&q\neq 0\text{ and }r\neq 0\text{ and }x\neq 0\\J\in \mathrm{C}\text{, }&\left(q=0\text{ or }r=0\text{ or }x=0\right)\text{ and }a=0\end{matrix}\right.
Solve for J
\left\{\begin{matrix}J=\frac{2a}{qrx}\text{, }&q\neq 0\text{ and }r\neq 0\text{ and }x\neq 0\\J\in \mathrm{R}\text{, }&\left(q=0\text{ or }r=0\text{ or }x=0\right)\text{ and }a=0\end{matrix}\right.
Solve for a
a=\frac{Jqrx}{2}
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qrxJ=2a
The equation is in standard form.
\frac{qrxJ}{qrx}=\frac{2a}{qrx}
Divide both sides by xrq.
J=\frac{2a}{qrx}
Dividing by xrq undoes the multiplication by xrq.
qrxJ=2a
The equation is in standard form.
\frac{qrxJ}{qrx}=\frac{2a}{qrx}
Divide both sides by xrq.
J=\frac{2a}{qrx}
Dividing by xrq undoes the multiplication by xrq.
2a=xrqJ
Swap sides so that all variable terms are on the left hand side.
2a=Jqrx
The equation is in standard form.
\frac{2a}{2}=\frac{Jqrx}{2}
Divide both sides by 2.
a=\frac{Jqrx}{2}
Dividing by 2 undoes the multiplication by 2.
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