Whakaoti i te 500-8x-40-20*2=0

$$500-8x-40-20 \times 2=0$$

Whakaoti mō x

$$x = \frac{105}{2} = 52\frac{1}{2} = 52.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 40 i te 500, ka 460.

$$460-8x-20\times 2=0$$

Whakareatia te 20 ki te 2, ka 40.

$$460-8x-40=0$$

Tangohia te 40 i te 460, ka 420.

$$420-8x=0$$

Tangohia te 420 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-8x=-420$$

Whakawehea ngā taha e rua ki te -8.

$$x=\frac{-420}{-8}$$

Whakahekea te hautanga \frac{-420}{-8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -4.

$$x=\frac{105}{2}$$