Whakaoti i te 980=x+0.4x+(0.4*x)0*4)

$$980 = x+0.4x+(0.4 \times x)0 \cdot 4)$$

Whakaoti mō x

$$x=700$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Pahekotia te x me 0.4x, ka 1.4x.

$$980=1.4x+0.4x\times 0\times 4$$

Whakareatia te 0.4 ki te 0, ka 0.

$$980=1.4x+0x\times 4$$

Whakareatia te 0 ki te 4, ka 0.

$$980=1.4x+0x$$

Ko te tau i whakarea ki te kore ka hua ko te kore.

$$980=1.4x+0$$

Ko te tau i tāpiria he kore ka hua koia tonu.

$$980=1.4x$$

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

$$1.4x=980$$

Whakawehea ngā taha e rua ki te 1.4.

$$x=\frac{980}{1.4}$$

Whakarohaina te \frac{980}{1.4} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{9800}{14}$$

Whakawehea te 9800 ki te 14, kia riro ko 700.

$$x=700$$