Whakaoti i te 21.2x+7.5=-1.3x+7.3

$$21.2 x + 7.5 = - 1.3 x + 7.3$$

Whakaoti mō x

$$x=-\frac{2}{225}\approx -0.008888889$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te 1.3x ki ngā taha e rua.

$$21.2x+7.5+1.3x=7.3$$

Pahekotia te 21.2x me 1.3x, ka 22.5x.

$$22.5x+7.5=7.3$$

Tangohia te 7.5 mai i ngā taha e rua.

$$22.5x=7.3-7.5$$

Tangohia te 7.5 i te 7.3, ka -0.2.

$$22.5x=-0.2$$

Whakawehea ngā taha e rua ki te 22.5.

$$x=\frac{-0.2}{22.5}$$

Whakarohaina te \frac{-0.2}{22.5} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{-2}{225}$$

Ka taea te hautanga \frac{-2}{225} te tuhi anō ko -\frac{2}{225} mā te tango i te tohu tōraro.

$$x=-\frac{2}{225}$$