Whakaoti i te 1,6-0,3/2y+4,4+1,5/5y<-4,05y

$$\frac { 1,6 - 0,3 } { 2 } y + \frac { 4,4 + 1,5 } { 5 } y < - 4,05 y$$

Whakaoti mō y

$$y<0$$

Ngā Upane Otinga

Me whakarea ngā taha e rua o te whārite ki te 10, arā, te tauraro pātahi he tino iti rawa te kitea o 2,5. I te mea he tōrunga te 10, kāore e huri te ahunga koreōrite.

$$5\left(1.6-0.3\right)y+2\left(4.4+1.5\right)y<-40.5y$$

Tangohia te 0.3 i te 1.6, ka 1.3.

$$5\times 1.3y+2\left(4.4+1.5\right)y<-40.5y$$

Whakareatia te 5 ki te 1.3, ka 6.5.

$$6.5y+2\left(4.4+1.5\right)y<-40.5y$$

Tāpirihia te 4.4 ki te 1.5, ka 5.9.

$$6.5y+2\times 5.9y<-40.5y$$

Whakareatia te 2 ki te 5.9, ka 11.8.

$$6.5y+11.8y<-40.5y$$

Pahekotia te 6.5y me 11.8y, ka 18.3y.

$$18.3y<-40.5y$$

Me tāpiri te 40.5y ki ngā taha e rua.

$$18.3y+40.5y<0$$

Pahekotia te 18.3y me 40.5y, ka 58.8y.

$$58.8y<0$$

Ko te otinga o ngā tau e rua ko <0 ina ko >0 tētahi, ā, ko <0 tētahi. Ina ko 58.8>0, he <0 rawa a y.

$$y<0$$