Whakaoti i te 3(x-4)-2(4x-3)=12(x-9)

$$3 ( x - 4 ) - 2 ( 4 x - 3 ) = 12 ( x - 9 )$$

Whakaoti mō x

$$x=6$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-4.

$$3x-12-2\left(4x-3\right)=12\left(x-9\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te 4x-3.

$$3x-12-8x+6=12\left(x-9\right)$$

Pahekotia te 3x me -8x, ka -5x.

$$-5x-12+6=12\left(x-9\right)$$

Tāpirihia te -12 ki te 6, ka -6.

$$-5x-6=12\left(x-9\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 12 ki te x-9.

$$-5x-6=12x-108$$

Tangohia te 12x mai i ngā taha e rua.

$$-5x-6-12x=-108$$

Pahekotia te -5x me -12x, ka -17x.

$$-17x-6=-108$$

Me tāpiri te 6 ki ngā taha e rua.

$$-17x=-108+6$$

Tāpirihia te -108 ki te 6, ka -102.

$$-17x=-102$$

Whakawehea ngā taha e rua ki te -17.

$$x=\frac{-102}{-17}$$

Whakawehea te -102 ki te -17, kia riro ko 6.

$$x=6$$