Whakaoti i te 0.7(x+((x-85)div2))=1000

$$0.7(x+((x-85) \div 2))=1000$$

Whakaoti mō x

$$x = \frac{6865}{7} = 980\frac{5}{7} \approx 980.714285714$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakawehea ngā taha e rua ki te 0.7.

$$x+\frac{x-85}{2}=\frac{1000}{0.7}$$

Whakarohaina te \frac{1000}{0.7} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x+\frac{x-85}{2}=\frac{10000}{7}$$

Me whakarea ngā taha e rua o te whārite ki te 14, arā, te tauraro pātahi he tino iti rawa te kitea o 2,7.

$$14x+7\left(x-85\right)=20000$$

Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x-85.

$$14x+7x-595=20000$$

Pahekotia te 14x me 7x, ka 21x.

$$21x-595=20000$$

Me tāpiri te 595 ki ngā taha e rua.

$$21x=20000+595$$

Tāpirihia te 20000 ki te 595, ka 20595.

$$21x=20595$$

Whakawehea ngā taha e rua ki te 21.

$$x=\frac{20595}{21}$$

Whakahekea te hautanga \frac{20595}{21} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$x=\frac{6865}{7}$$