y = \text { Beta } 5 ^ { \circ }
Solve for B
\left\{\begin{matrix}B=\frac{y}{5\eta }\text{, }&\eta \neq 0\\B\in \mathrm{R}\text{, }&y=0\text{ and }\eta =0\end{matrix}\right.
Solve for y
y=5B\eta
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B\eta \times 5=y
Swap sides so that all variable terms are on the left hand side.
5\eta B=y
The equation is in standard form.
\frac{5\eta B}{5\eta }=\frac{y}{5\eta }
Divide both sides by 5\eta .
B=\frac{y}{5\eta }
Dividing by 5\eta undoes the multiplication by 5\eta .
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