Whakaoti i te (x-0.3x-0.13x)*0.87=100

$$(x-0.3x-0.13x) \times 0.87=100$$

Whakaoti mō x

$$x = \frac{1000000}{4959} = 201\frac{3241}{4959} \approx 201.653559185$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakawehea ngā taha e rua ki te 0.87.

$$x-0.3x-0.13x=\frac{100}{0.87}$$

Whakarohaina te \frac{100}{0.87} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x-0.3x-0.13x=\frac{10000}{87}$$

Pahekotia te x me -0.3x, ka 0.7x.

$$0.7x-0.13x=\frac{10000}{87}$$

Pahekotia te 0.7x me -0.13x, ka 0.57x.

$$0.57x=\frac{10000}{87}$$

Whakawehea ngā taha e rua ki te 0.57.

$$x=\frac{\frac{10000}{87}}{0.57}$$

Tuhia te \frac{\frac{10000}{87}}{0.57} hei hautanga kotahi.

$$x=\frac{10000}{87\times 0.57}$$

Whakareatia te 87 ki te 0.57, ka 49.59.

$$x=\frac{10000}{49.59}$$

Whakarohaina te \frac{10000}{49.59} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{1000000}{4959}$$