Whakaoti mō W
\left\{\begin{matrix}W=\frac{U}{rt+1}\text{, }&t=0\text{ or }r\neq -\frac{1}{t}\\W\in \mathrm{R}\text{, }&U=0\text{ and }r=-\frac{1}{t}\text{ and }t\neq 0\end{matrix}\right.
Whakaoti mō U
U=W\left(rt+1\right)
Tohaina
Kua tāruatia ki te papatopenga
U=W+Wrt
Whakamahia te āhuatanga tohatoha hei whakarea te W ki te 1+rt.
W+Wrt=U
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\left(1+rt\right)W=U
Pahekotia ngā kīanga tau katoa e whai ana i te W.
\left(rt+1\right)W=U
He hanga arowhānui tō te whārite.
\frac{\left(rt+1\right)W}{rt+1}=\frac{U}{rt+1}
Whakawehea ngā taha e rua ki te 1+rt.
W=\frac{U}{rt+1}
Mā te whakawehe ki te 1+rt ka wetekia te whakareanga ki te 1+rt.
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