Whakaoti i te 2*(x+6)-(5-3*x)=2*(-x+9)+3

$$2 \cdot ( x + 6 ) - ( 5 - 3 \cdot x ) = 2 \cdot ( - x + 9 ) + 3$$

Whakaoti mō x

$$x=2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+6.

$$2x+12-\left(5-3x\right)=2\left(-x+9\right)+3$$

Hei kimi i te tauaro o 5-3x, kimihia te tauaro o ia taurangi.

$$2x+12-5-\left(-3x\right)=2\left(-x+9\right)+3$$

Ko te tauaro o -3x ko 3x.

$$2x+12-5+3x=2\left(-x+9\right)+3$$

Tangohia te 5 i te 12, ka 7.

$$2x+7+3x=2\left(-x+9\right)+3$$

Pahekotia te 2x me 3x, ka 5x.

$$5x+7=2\left(-x+9\right)+3$$

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te -x+9.

$$5x+7=2\left(-x\right)+18+3$$

Tāpirihia te 18 ki te 3, ka 21.

$$5x+7=2\left(-x\right)+21$$

Tangohia te 2\left(-x\right) mai i ngā taha e rua.

$$5x+7-2\left(-x\right)=21$$

Whakareatia te -1 ki te 2, ka -2.

$$5x+7-2\left(-1\right)x=21$$

Whakareatia te -2 ki te -1, ka 2.

$$5x+7+2x=21$$

Pahekotia te 5x me 2x, ka 7x.

$$7x+7=21$$

Tangohia te 7 mai i ngā taha e rua.

$$7x=21-7$$

Tangohia te 7 i te 21, ka 14.

$$7x=14$$

Whakawehea ngā taha e rua ki te 7.

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

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

$$x=2$$