Divide both sides by \({()}^{2}\).
\[\frac{Y}{{}^{2}}=2X+5\]
Subtract \(5\) from both sides.
\[\frac{Y}{{}^{2}}-5=2X\]
Divide both sides by \(2\).
\[\frac{\frac{Y}{{}^{2}}-5}{2}=X\]
Simplify \(\frac{\frac{Y}{{}^{2}}-5}{2}\) to \(\frac{\frac{Y}{{}^{2}}}{2}-\frac{5}{2}\).
\[\frac{\frac{Y}{{}^{2}}}{2}-\frac{5}{2}=X\]
Simplify \(\frac{\frac{Y}{{}^{2}}}{2}\) to \(\frac{Y}{{}^{2}\times 2}\).
\[\frac{Y}{{}^{2}\times 2}-\frac{5}{2}=X\]
Switch sides.
\[X=\frac{Y}{{}^{2}\times 2}-\frac{5}{2}\]
X=Y/(^2*2)-5/2
