Whakaoti i te 2(y+4)geq7(y-1)

$$2 ( y + 4 ) \geq 7 ( y - 1 )$$

Whakaoti mō y

$$y\leq 3$$

Ngā Upane Otinga

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

$$2y+8\geq 7\left(y-1\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te y-1.

$$2y+8\geq 7y-7$$

Tangohia te 7y mai i ngā taha e rua.

$$2y+8-7y\geq -7$$

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

$$-5y+8\geq -7$$

Tangohia te 8 mai i ngā taha e rua.

$$-5y\geq -7-8$$

Tangohia te 8 i te -7, ka -15.

$$-5y\geq -15$$

Whakawehea ngā taha e rua ki te -5. I te mea he tōraro a -5, ka huri te ahunga koreōrite.

$$y\leq \frac{-15}{-5}$$

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

$$y\leq 3$$