Whakaoti i te 11/2(x-2/3)=0.2

$$1 \frac{ 1 }{ 2 } (x- \frac{ 2 }{ 3 } )=0.2$$

Whakaoti mō x

$$x=0.8$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 2,3.

$$3\left(1\times 2+1\right)\left(x-\frac{2}{3}\right)=1.2$$

Whakareatia te 1 ki te 2, ka 2.

$$3\left(2+1\right)\left(x-\frac{2}{3}\right)=1.2$$

Tāpirihia te 2 ki te 1, ka 3.

$$3\times 3\left(x-\frac{2}{3}\right)=1.2$$

Whakareatia te 3 ki te 3, ka 9.

$$9\left(x-\frac{2}{3}\right)=1.2$$

Whakamahia te āhuatanga tohatoha hei whakarea te 9 ki te x-\frac{2}{3}.

$$9x+9\left(-\frac{2}{3}\right)=1.2$$

Tuhia te 9\left(-\frac{2}{3}\right) hei hautanga kotahi.

$$9x+\frac{9\left(-2\right)}{3}=1.2$$

Whakareatia te 9 ki te -2, ka -18.

$$9x+\frac{-18}{3}=1.2$$

Whakawehea te -18 ki te 3, kia riro ko -6.

$$9x-6=1.2$$

Me tāpiri te 6 ki ngā taha e rua.

$$9x=1.2+6$$

Tāpirihia te 1.2 ki te 6, ka 7.2.

$$9x=7.2$$

Whakawehea ngā taha e rua ki te 9.

$$x=\frac{7.2}{9}$$

Whakarohaina te \frac{7.2}{9} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{72}{90}$$

Whakahekea te hautanga \frac{72}{90} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 18.

$$x=\frac{4}{5}$$