Whakaoti i te 8(s+17)leq4(3s+17)+20

$$8 ( s + 17 ) \leq 4 ( 3 s + 17 ) + 20$$

Whakaoti mō s

$$s\geq 12$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te 8 ki te s+17.

$$8s+136\leq 4\left(3s+17\right)+20$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 3s+17.

$$8s+136\leq 12s+68+20$$

Tāpirihia te 68 ki te 20, ka 88.

$$8s+136\leq 12s+88$$

Tangohia te 12s mai i ngā taha e rua.

$$8s+136-12s\leq 88$$

Pahekotia te 8s me -12s, ka -4s.

$$-4s+136\leq 88$$

Tangohia te 136 mai i ngā taha e rua.

$$-4s\leq 88-136$$

Tangohia te 136 i te 88, ka -48.

$$-4s\leq -48$$

Whakawehea ngā taha e rua ki te -4. I te mea he tōraro a -4, ka huri te ahunga koreōrite.

$$s\geq \frac{-48}{-4}$$

Whakawehea te -48 ki te -4, kia riro ko 12.

$$s\geq 12$$