Whakaoti mō b
b=-xy
x\neq 0
Whakaoti mō x
\left\{\begin{matrix}x=-\frac{b}{y}\text{, }&b\neq 0\text{ and }y\neq 0\\x\neq 0\text{, }&y=0\text{ and }b=0\end{matrix}\right.
Graph
Tohaina
Kua tāruatia ki te papatopenga
yx=-b
Whakareatia ngā taha e rua o te whārite ki te x.
-b=yx
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-b=xy
He hanga arowhānui tō te whārite.
\frac{-b}{-1}=\frac{xy}{-1}
Whakawehea ngā taha e rua ki te -1.
b=\frac{xy}{-1}
Mā te whakawehe ki te -1 ka wetekia te whakareanga ki te -1.
b=-xy
Whakawehe yx ki te -1.
yx=-b
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x.
\frac{yx}{y}=-\frac{b}{y}
Whakawehea ngā taha e rua ki te y.
x=-\frac{b}{y}
Mā te whakawehe ki te y ka wetekia te whakareanga ki te y.
x=-\frac{b}{y}\text{, }x\neq 0
Tē taea kia ōrite te tāupe x ki 0.
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