Whakaoti i te 3(x-2)-(1-x)=13

$$3 ( x - 2 ) - ( 1 - x ) = 13$$

Whakaoti mō x

$$x=5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$3x-6-\left(1-x\right)=13$$

Hei kimi i te tauaro o 1-x, kimihia te tauaro o ia taurangi.

$$3x-6-1-\left(-x\right)=13$$

Ko te tauaro o -x ko x.

$$3x-6-1+x=13$$

Tangohia te 1 i te -6, ka -7.

$$3x-7+x=13$$

Pahekotia te 3x me x, ka 4x.

$$4x-7=13$$

Me tāpiri te 7 ki ngā taha e rua.

$$4x=13+7$$

Tāpirihia te 13 ki te 7, ka 20.

$$4x=20$$

Whakawehea ngā taha e rua ki te 4.

$$x=\frac{20}{4}$$

Whakawehea te 20 ki te 4, kia riro ko 5.

$$x=5$$