Whakaoti i te -(3+2x)-15=2x+7-(10-x)

$$- ( 3 + 2 x ) - 15 = 2 x + 7 - ( 10 - x )$$

Whakaoti mō x

$$x=-3$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Hei kimi i te tauaro o 3+2x, kimihia te tauaro o ia taurangi.

$$-3-2x-15=2x+7-\left(10-x\right)$$

Tangohia te 15 i te -3, ka -18.

$$-18-2x=2x+7-\left(10-x\right)$$

Hei kimi i te tauaro o 10-x, kimihia te tauaro o ia taurangi.

$$-18-2x=2x+7-10-\left(-x\right)$$

Ko te tauaro o -x ko x.

$$-18-2x=2x+7-10+x$$

Tangohia te 10 i te 7, ka -3.

$$-18-2x=2x-3+x$$

Pahekotia te 2x me x, ka 3x.

$$-18-2x=3x-3$$

Tangohia te 3x mai i ngā taha e rua.

$$-18-2x-3x=-3$$

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

$$-18-5x=-3$$

Me tāpiri te 18 ki ngā taha e rua.

$$-5x=-3+18$$

Tāpirihia te -3 ki te 18, ka 15.

$$-5x=15$$

Whakawehea ngā taha e rua ki te -5.

$$x=\frac{15}{-5}$$

Whakawehea te 15 ki te -5, kia riro ko -3.

$$x=-3$$