Whakaoti i te 3(2y-1)-2(y-4)=2(y+1)+9

$$3 ( 2 y - 1 ) - 2 ( y - 4 ) = 2 ( y + 1 ) + 9$$

Whakaoti mō y

$$y=3$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 2y-1.

$$6y-3-2\left(y-4\right)=2\left(y+1\right)+9$$

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

$$6y-3-2y+8=2\left(y+1\right)+9$$

Pahekotia te 6y me -2y, ka 4y.

$$4y-3+8=2\left(y+1\right)+9$$

Tāpirihia te -3 ki te 8, ka 5.

$$4y+5=2\left(y+1\right)+9$$

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te y+1.

$$4y+5=2y+2+9$$

Tāpirihia te 2 ki te 9, ka 11.

$$4y+5=2y+11$$

Tangohia te 2y mai i ngā taha e rua.

$$4y+5-2y=11$$

Pahekotia te 4y me -2y, ka 2y.

$$2y+5=11$$

Tangohia te 5 mai i ngā taha e rua.

$$2y=11-5$$

Tangohia te 5 i te 11, ka 6.

$$2y=6$$

Whakawehea ngā taha e rua ki te 2.

$$y=\frac{6}{2}$$

Whakawehea te 6 ki te 2, kia riro ko 3.

$$y=3$$