Whakaoti mō P
\left\{\begin{matrix}P=-\frac{n-49}{n_{2}!}\text{, }&n_{2}!\neq 0\\P\in \mathrm{R}\text{, }&n=49\text{ and }n_{2}!=0\end{matrix}\right.
Whakaoti mō n
n=-Pn_{2}!+49
Tohaina
Kua tāruatia ki te papatopenga
Pn_{2}!=49-n
Tangohia te n mai i ngā taha e rua.
n_{2}!P=49-n
He hanga arowhānui tō te whārite.
\frac{n_{2}!P}{n_{2}!}=\frac{49-n}{n_{2}!}
Whakawehea ngā taha e rua ki te n_{2}!.
P=\frac{49-n}{n_{2}!}
Mā te whakawehe ki te n_{2}! ka wetekia te whakareanga ki te n_{2}!.
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