Whakaoti i te 3/5y-2=7/10

$$\frac { 3 } { 5 } y - 2 = \frac { 7 } { 10 }$$

Whakaoti mō y

$$y = \frac{9}{2} = 4\frac{1}{2} = 4.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te 2 ki ngā taha e rua.

$$\frac{3}{5}y=\frac{7}{10}+2$$

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

$$\frac{3}{5}y=\frac{7}{10}+\frac{20}{10}$$

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.

$$\frac{3}{5}y=\frac{7+20}{10}$$

Tāpirihia te 7 ki te 20, ka 27.

$$\frac{3}{5}y=\frac{27}{10}$$

Me whakarea ngā taha e rua ki te \frac{5}{3}, te tau utu o \frac{3}{5}.

$$y=\frac{27}{10}\times \frac{5}{3}$$

Me whakarea te \frac{27}{10} ki te \frac{5}{3} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$y=\frac{27\times 5}{10\times 3}$$

Mahia ngā whakarea i roto i te hautanga \frac{27\times 5}{10\times 3}.

$$y=\frac{135}{30}$$

Whakahekea te hautanga \frac{135}{30} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 15.

$$y=\frac{9}{2}$$