Whakaoti i te 2(x-4)=4(2x+1)?

$$2 ( x - 4 ) = 4 ( 2 x + 1 ) ?$$

Whakaoti mō x

$$x=-2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$2x-8=4\left(2x+1\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2x+1.

$$2x-8=8x+4$$

Tangohia te 8x mai i ngā taha e rua.

$$2x-8-8x=4$$

Pahekotia te 2x me -8x, ka -6x.

$$-6x-8=4$$

Me tāpiri te 8 ki ngā taha e rua.

$$-6x=4+8$$

Tāpirihia te 4 ki te 8, ka 12.

$$-6x=12$$

Whakawehea ngā taha e rua ki te -6.

$$x=\frac{12}{-6}$$

Whakawehea te 12 ki te -6, kia riro ko -2.

$$x=-2$$