Whakaoti i te -2(3x-7)=4(x+9

$$- 2 ( 3 x - 7 ) = 4 ( x + 9$$

Whakaoti mō x

$$x = -\frac{11}{5} = -2\frac{1}{5} = -2.2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te 3x-7.

$$-6x+14=4\left(x+9\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+9.

$$-6x+14=4x+36$$

Tangohia te 4x mai i ngā taha e rua.

$$-6x+14-4x=36$$

Pahekotia te -6x me -4x, ka -10x.

$$-10x+14=36$$

Tangohia te 14 mai i ngā taha e rua.

$$-10x=36-14$$

Tangohia te 14 i te 36, ka 22.

$$-10x=22$$

Whakawehea ngā taha e rua ki te -10.

$$x=\frac{22}{-10}$$

Whakahekea te hautanga \frac{22}{-10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$x=-\frac{11}{5}$$