Whakaoti i te 2x+40%=72

$$2 x + 40 \% = 72$$

Whakaoti mō x

$$x = \frac{179}{5} = 35\frac{4}{5} = 35.8$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakahekea te hautanga \frac{40}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.

$$2x+\frac{2}{5}=72$$

Tangohia te \frac{2}{5} mai i ngā taha e rua.

$$2x=72-\frac{2}{5}$$

Me tahuri te 72 ki te hautau \frac{360}{5}.

$$2x=\frac{360}{5}-\frac{2}{5}$$

Tā te mea he rite te tauraro o \frac{360}{5} me \frac{2}{5}, me tango rāua mā te tango i ō raua taurunga.

$$2x=\frac{360-2}{5}$$

Tangohia te 2 i te 360, ka 358.

$$2x=\frac{358}{5}$$

Whakawehea ngā taha e rua ki te 2.

$$x=\frac{\frac{358}{5}}{2}$$

Tuhia te \frac{\frac{358}{5}}{2} hei hautanga kotahi.

$$x=\frac{358}{5\times 2}$$

Whakareatia te 5 ki te 2, ka 10.

$$x=\frac{358}{10}$$

Whakahekea te hautanga \frac{358}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$x=\frac{179}{5}$$