Whakaoti i te 3x+4(x-1)=8+2(x-2)

$$3 x + 4 ( x - 1 ) = 8 + 2 ( x - 2 )$$

Whakaoti mō x

$$x = \frac{8}{5} = 1\frac{3}{5} = 1.6$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x-1.

$$3x+4x-4=8+2\left(x-2\right)$$

Pahekotia te 3x me 4x, ka 7x.

$$7x-4=8+2\left(x-2\right)$$

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

$$7x-4=8+2x-4$$

Tangohia te 4 i te 8, ka 4.

$$7x-4=4+2x$$

Tangohia te 2x mai i ngā taha e rua.

$$7x-4-2x=4$$

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

$$5x-4=4$$

Me tāpiri te 4 ki ngā taha e rua.

$$5x=4+4$$

Tāpirihia te 4 ki te 4, ka 8.

$$5x=8$$

Whakawehea ngā taha e rua ki te 5.

$$x=\frac{8}{5}$$