Whakaoti i te 18.8*x*(400-8)=75*4186*(8-5)

$$18.8 \cdot x \cdot ( 400 - 8 ) = 75 \cdot 4186 \cdot ( 8 - 5 )$$

Whakaoti mō x

$$x = \frac{336375}{2632} = 127\frac{2111}{2632} \approx 127.802051672$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 8 i te 400, ka 392.

$$18.8x\times 392=75\times 4186\left(8-5\right)$$

Whakareatia te 18.8 ki te 392, ka 7369.6.

$$7369.6x=75\times 4186\left(8-5\right)$$

Whakareatia te 75 ki te 4186, ka 313950.

$$7369.6x=313950\left(8-5\right)$$

Tangohia te 5 i te 8, ka 3.

$$7369.6x=313950\times 3$$

Whakareatia te 313950 ki te 3, ka 941850.

$$7369.6x=941850$$

Whakawehea ngā taha e rua ki te 7369.6.

$$x=\frac{941850}{7369.6}$$

Whakarohaina te \frac{941850}{7369.6} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{9418500}{73696}$$

Whakahekea te hautanga \frac{9418500}{73696} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 28.

$$x=\frac{336375}{2632}$$