Whakaoti i te 15*3+6*3=45*x

$$15 \times 3+6 \times 3=45 \times x$$

Whakaoti mō x

$$x = \frac{7}{5} = 1\frac{2}{5} = 1.4$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 15 ki te 3, ka 45. Whakareatia te 6 ki te 3, ka 18.

$$45+18=45x$$

Tāpirihia te 45 ki te 18, ka 63.

$$63=45x$$

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

$$45x=63$$

Whakawehea ngā taha e rua ki te 45.

$$x=\frac{63}{45}$$

Whakahekea te hautanga \frac{63}{45} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 9.

$$x=\frac{7}{5}$$