Whakaoti i te 0.3x+1.2=0.25-0.2x

$$0.3 x + 1.2 = 0.25 - 0.2 x$$

Whakaoti mō x

$$x=-1.9$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te 0.2x ki ngā taha e rua.

$$0.3x+1.2+0.2x=0.25$$

Pahekotia te 0.3x me 0.2x, ka 0.5x.

$$0.5x+1.2=0.25$$

Tangohia te 1.2 mai i ngā taha e rua.

$$0.5x=0.25-1.2$$

Tangohia te 1.2 i te 0.25, ka -0.95.

$$0.5x=-0.95$$

Whakawehea ngā taha e rua ki te 0.5.

$$x=\frac{-0.95}{0.5}$$

Whakarohaina te \frac{-0.95}{0.5} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{-95}{50}$$

Whakahekea te hautanga \frac{-95}{50} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$x=-\frac{19}{10}$$