Whakaoti i te -5(8-4x)+3xleq7(3x-6)

$$- 5 ( 8 - 4 x ) + 3 x \leq 7 ( 3 x - 6 )$$

Whakaoti mō x

$$x\leq -1$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 8-4x.

$$-40+20x+3x\leq 7\left(3x-6\right)$$

Pahekotia te 20x me 3x, ka 23x.

$$-40+23x\leq 7\left(3x-6\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te 3x-6.

$$-40+23x\leq 21x-42$$

Tangohia te 21x mai i ngā taha e rua.

$$-40+23x-21x\leq -42$$

Pahekotia te 23x me -21x, ka 2x.

$$-40+2x\leq -42$$

Me tāpiri te 40 ki ngā taha e rua.

$$2x\leq -42+40$$

Tāpirihia te -42 ki te 40, ka -2.

$$2x\leq -2$$

Whakawehea ngā taha e rua ki te 2. I te mea he tōrunga te 2, kāore e huri te ahunga koreōrite.

$$x\leq \frac{-2}{2}$$

Whakawehea te -2 ki te 2, kia riro ko -1.

$$x\leq -1$$