Whakaoti mō a
a=\frac{bc}{d}
b\neq 0\text{ and }d\neq 0
Whakaoti mō b
\left\{\begin{matrix}b=\frac{ad}{c}\text{, }&d\neq 0\text{ and }a\neq 0\text{ and }c\neq 0\\b\neq 0\text{, }&c=0\text{ and }a=0\text{ and }d\neq 0\end{matrix}\right.
Tohaina
Kua tāruatia ki te papatopenga
da=bc
Me whakarea ngā taha e rua o te whārite ki te bd, arā, te tauraro pātahi he tino iti rawa te kitea o b,d.
\frac{da}{d}=\frac{bc}{d}
Whakawehea ngā taha e rua ki te d.
a=\frac{bc}{d}
Mā te whakawehe ki te d ka wetekia te whakareanga ki te d.
da=bc
Tē taea kia ōrite te tāupe b ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te bd, arā, te tauraro pātahi he tino iti rawa te kitea o b,d.
bc=da
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
cb=ad
He hanga arowhānui tō te whārite.
\frac{cb}{c}=\frac{ad}{c}
Whakawehea ngā taha e rua ki te c.
b=\frac{ad}{c}
Mā te whakawehe ki te c ka wetekia te whakareanga ki te c.
b=\frac{ad}{c}\text{, }b\neq 0
Tē taea kia ōrite te tāupe b ki 0.
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