Whakaoti i te -7y=24quadtext{II.}9x=3y+6

$$- 7 y = 24 \quad \text { II. } 9 x = 3 y + 6$$

Whakaoti mō y, x

$$x=-\frac{10}{21}\approx -0.476190476$$

$$y = -\frac{24}{7} = -3\frac{3}{7} \approx -3.428571429$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Whakawehea ngā taha e rua ki te -7.

$$y=-\frac{24}{7}$$

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

$$9x=3\left(-\frac{24}{7}\right)+6$$

Whakareatia te 3 ki te -\frac{24}{7}, ka -\frac{72}{7}.

$$9x=-\frac{72}{7}+6$$

Tāpirihia te -\frac{72}{7} ki te 6, ka -\frac{30}{7}.

$$9x=-\frac{30}{7}$$

Whakawehea ngā taha e rua ki te 9.

$$x=\frac{-\frac{30}{7}}{9}$$

Tuhia te \frac{-\frac{30}{7}}{9} hei hautanga kotahi.

$$x=\frac{-30}{7\times 9}$$

Whakareatia te 7 ki te 9, ka 63.

$$x=\frac{-30}{63}$$

Whakahekea te hautanga \frac{-30}{63} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$x=-\frac{10}{21}$$

Kua oti te pūnaha te whakatau.

$$y=-\frac{24}{7} x=-\frac{10}{21}$$