Whakaoti i te (21/10-6/10)x=60

$$( \frac { 21 } { 10 } - \frac { 6 } { 10 } ) x = 60$$

Whakaoti mō x

$$x=40$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakahekea te hautanga \frac{6}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\left(\frac{21}{10}-\frac{3}{5}\right)x=60$$

Ko te maha noa iti rawa atu o 10 me 5 ko 10. Me tahuri \frac{21}{10} me \frac{3}{5} ki te hautau me te tautūnga 10.

$$\left(\frac{21}{10}-\frac{6}{10}\right)x=60$$

Tā te mea he rite te tauraro o \frac{21}{10} me \frac{6}{10}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{21-6}{10}x=60$$

Tangohia te 6 i te 21, ka 15.

$$\frac{15}{10}x=60$$

Whakahekea te hautanga \frac{15}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{3}{2}x=60$$

Me whakarea ngā taha e rua ki te \frac{2}{3}, te tau utu o \frac{3}{2}.

$$x=60\times \frac{2}{3}$$

Tuhia te 60\times \frac{2}{3} hei hautanga kotahi.

$$x=\frac{60\times 2}{3}$$

Whakareatia te 60 ki te 2, ka 120.

$$x=\frac{120}{3}$$

Whakawehea te 120 ki te 3, kia riro ko 40.

$$x=40$$