Whakaoti i te 2*(-1.6):y=9x-5

$$2 \cdot ( - 1.6 ) : y = 9 x - 5$$

Whakaoti mō x

$$x=\frac{5}{9}-\frac{16}{45y}$$

$$y\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia ngā taha e rua o te whārite ki te y.

$$2\left(-1.6\right)=9xy+y\left(-5\right)$$

Whakareatia te 2 ki te -1.6, ka -3.2.

$$-3.2=9xy+y\left(-5\right)$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$9xy+y\left(-5\right)=-3.2$$

Tangohia te y\left(-5\right) mai i ngā taha e rua.

$$9xy=-3.2-y\left(-5\right)$$

Whakareatia te -1 ki te -5, ka 5.

$$9xy=-3.2+5y$$

He hanga arowhānui tō te whārite.

$$9yx=5y-3.2$$

Whakawehea ngā taha e rua ki te 9y.

$$\frac{9yx}{9y}=\frac{5y-3.2}{9y}$$

Mā te whakawehe ki te 9y ka wetekia te whakareanga ki te 9y.

$$x=\frac{5y-3.2}{9y}$$

Whakawehe 5y-3.2 ki te 9y.

$$x=\frac{5}{9}-\frac{16}{45y}$$

Whakaoti mō y

$$y=-\frac{16}{5\left(9x-5\right)}$$

$$x\neq \frac{5}{9}$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tē taea kia ōrite te tāupe y ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te y.

$$2\left(-1.6\right)=9xy+y\left(-5\right)$$

Whakareatia te 2 ki te -1.6, ka -3.2.

$$-3.2=9xy+y\left(-5\right)$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$9xy+y\left(-5\right)=-3.2$$

Pahekotia ngā kīanga tau katoa e whai ana i te y.

$$\left(9x-5\right)y=-3.2$$

Whakawehea ngā taha e rua ki te -5+9x.

$$\frac{\left(9x-5\right)y}{9x-5}=-\frac{3.2}{9x-5}$$

Mā te whakawehe ki te -5+9x ka wetekia te whakareanga ki te -5+9x.

$$y=-\frac{3.2}{9x-5}$$

Whakawehe -3.2 ki te -5+9x.

$$y=-\frac{16}{5\left(9x-5\right)}$$

Tē taea kia ōrite te tāupe y ki 0.

$$y=-\frac{16}{5\left(9x-5\right)}\text{, }y\neq 0$$