Whakaoti i te x+20%x=156

$$x + 20 \% x = 156$$

Whakaoti mō x

$$x=130$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$x+\frac{1}{5}x=156$$

Pahekotia te x me \frac{1}{5}x, ka \frac{6}{5}x.

$$\frac{6}{5}x=156$$

Me whakarea ngā taha e rua ki te \frac{5}{6}, te tau utu o \frac{6}{5}.

$$x=156\times \frac{5}{6}$$

Tuhia te 156\times \frac{5}{6} hei hautanga kotahi.

$$x=\frac{156\times 5}{6}$$

Whakareatia te 156 ki te 5, ka 780.

$$x=\frac{780}{6}$$

Whakawehea te 780 ki te 6, kia riro ko 130.

$$x=130$$