Whakaoti i te 3y-2=7/10

$$3 y - 2 = \frac { 7 } { 10 }$$

Whakaoti mō y

$$y=\frac{9}{10}=0.9$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te 2 ki ngā taha e rua.

$$3y=\frac{7}{10}+2$$

Me tahuri te 2 ki te hautau \frac{20}{10}.

$$3y=\frac{7}{10}+\frac{20}{10}$$

Tā te mea he rite te tauraro o \frac{7}{10} me \frac{20}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$3y=\frac{7+20}{10}$$

Tāpirihia te 7 ki te 20, ka 27.

$$3y=\frac{27}{10}$$

Whakawehea ngā taha e rua ki te 3.

$$y=\frac{\frac{27}{10}}{3}$$

Tuhia te \frac{\frac{27}{10}}{3} hei hautanga kotahi.

$$y=\frac{27}{10\times 3}$$

Whakareatia te 10 ki te 3, ka 30.

$$y=\frac{27}{30}$$

Whakahekea te hautanga \frac{27}{30} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$y=\frac{9}{10}$$