Whakaoti i te 0.3(6-x)=0.4(x+8)

$$0.3 ( 6 - x ) = 0.4 ( x + 8 )$$

Whakaoti mō x

$$x=-2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 0.3 ki te 6-x.

$$1.8-0.3x=0.4\left(x+8\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 0.4 ki te x+8.

$$1.8-0.3x=0.4x+3.2$$

Tangohia te 0.4x mai i ngā taha e rua.

$$1.8-0.3x-0.4x=3.2$$

Pahekotia te -0.3x me -0.4x, ka -0.7x.

$$1.8-0.7x=3.2$$

Tangohia te 1.8 mai i ngā taha e rua.

$$-0.7x=3.2-1.8$$

Tangohia te 1.8 i te 3.2, ka 1.4.

$$-0.7x=1.4$$

Whakawehea ngā taha e rua ki te -0.7.

$$x=\frac{1.4}{-0.7}$$

Whakarohaina te \frac{1.4}{-0.7} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{14}{-7}$$

Whakawehea te 14 ki te -7, kia riro ko -2.

$$x=-2$$