Use Negative Power Rule: \({x}^{-a}=\frac{1}{{x}^{a}}\).
\[fx=4x-7Find\times \frac{1}{f}\times 1\]
Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[fx=4x-\frac{7Find\times 1\times 1}{f}\]
Simplify \(7Find\times 1\times 1\) to \(7ndFi\).
\[fx=4x-\frac{7ndFi}{f}\]
Regroup terms.
\[fx=4x-\frac{7Find}{f}\]
Subtract \(4x\) from both sides.
\[fx-4x=-\frac{7Find}{f}\]
Factor out the common term \(x\).
\[x(f-4)=-\frac{7Find}{f}\]
Multiply both sides by \(f\).
\[x(f-4)f=-7Find\]
Regroup terms.
\[xf(f-4)=-7Find\]
Divide both sides by \(-7\).
\[-\frac{xf(f-4)}{7}=Find\]
Divide both sides by \(Fi\).
\[-\frac{\frac{xf(f-4)}{7}}{Fi}=nd\]
Simplify \(\frac{\frac{xf(f-4)}{7}}{Fi}\) to \(\frac{xf(f-4)}{7Fi}\).
\[-\frac{xf(f-4)}{7Fi}=nd\]
Divide both sides by \(d\).
\[-\frac{\frac{xf(f-4)}{7Fi}}{d}=n\]
Simplify \(\frac{\frac{xf(f-4)}{7Fi}}{d}\) to \(\frac{xf(f-4)}{7Fid}\).
\[-\frac{xf(f-4)}{7Fid}=n\]
Switch sides.
\[n=-\frac{xf(f-4)}{7Fid}\]
n=-(x*f*(f-4))/(7*Fi*d)
