Whakaoti i te aquad2y-x=7

$$a \quad 2 y - x = 7$$

Whakaoti mō a_2 (complex solution)

$$\left\{\begin{matrix}a_{2}=\frac{x+7}{y}\text{, }&y\neq 0\\a_{2}\in \mathrm{C}\text{, }&x=-7\text{ and }y=0\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te x ki ngā taha e rua.

$$a_{2}y=7+x$$

He hanga arowhānui tō te whārite.

$$ya_{2}=x+7$$

Whakawehea ngā taha e rua ki te y.

$$\frac{ya_{2}}{y}=\frac{x+7}{y}$$

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

$$a_{2}=\frac{x+7}{y}$$

Whakaoti mō a_2

$$\left\{\begin{matrix}a_{2}=\frac{x+7}{y}\text{, }&y\neq 0\\a_{2}\in \mathrm{R}\text{, }&x=-7\text{ and }y=0\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te x ki ngā taha e rua.

$$a_{2}y=7+x$$

He hanga arowhānui tō te whārite.

$$ya_{2}=x+7$$

Whakawehea ngā taha e rua ki te y.

$$\frac{ya_{2}}{y}=\frac{x+7}{y}$$

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

$$a_{2}=\frac{x+7}{y}$$

Whakaoti mō x

$$x=a_{2}y-7$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te a_{2}y mai i ngā taha e rua.

$$-x=7-a_{2}y$$

Whakawehea ngā taha e rua ki te -1.

$$\frac{-x}{-1}=\frac{7-a_{2}y}{-1}$$

Mā te whakawehe ki te -1 ka wetekia te whakareanga ki te -1.

$$x=\frac{7-a_{2}y}{-1}$$

Whakawehe 7-a_{2}y ki te -1.

$$x=a_{2}y-7$$