Whakaoti i te 40-8I+60-20I-20*8I=0

$$40 - 8 I + 60 - 20 I - 20 \times 8 I = 0$$

Whakaoti mō I

$$I=\frac{25}{47}\approx 0.531914894$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tāpirihia te 40 ki te 60, ka 100.

$$100-8I-20I-20\times 8I=0$$

Pahekotia te -8I me -20I, ka -28I.

$$100-28I-20\times 8I=0$$

Whakareatia te 20 ki te 8, ka 160.

$$100-28I-160I=0$$

Pahekotia te -28I me -160I, ka -188I.

$$100-188I=0$$

Tangohia te 100 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-188I=-100$$

Whakawehea ngā taha e rua ki te -188.

$$I=\frac{-100}{-188}$$

Whakahekea te hautanga \frac{-100}{-188} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -4.

$$I=\frac{25}{47}$$