Whakaoti i te {l}{x+3y=6}{y+9y=9}

$$\left. \begin{array} { l } { x + 3 y = 6 } \\ { y + 9 y = 9 } \end{array} \right.$$

Whakaoti mō x, y

$$x = \frac{33}{10} = 3\frac{3}{10} = 3.3$$

$$y=\frac{9}{10}=0.9$$

Ngā Upane Otinga

Whakaarohia te whārite tuarua. Pahekotia te y me 9y, ka 10y.

$$10y=9$$

Whakawehea ngā taha e rua ki te 10.

$$y=\frac{9}{10}$$

Whakaarohia te whārite tuatahi. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$x+3\times \frac{9}{10}=6$$

Whakareatia te 3 ki te \frac{9}{10}, ka \frac{27}{10}.

$$x+\frac{27}{10}=6$$

Tangohia te \frac{27}{10} mai i ngā taha e rua.

$$x=6-\frac{27}{10}$$

Tangohia te \frac{27}{10} i te 6, ka \frac{33}{10}.

$$x=\frac{33}{10}$$

Kua oti te pūnaha te whakatau.

$$x=\frac{33}{10} y=\frac{9}{10}$$