Whakaoti i te 3(x-6)-8x=-2+5(2x+1)

$$3 ( x - 6 ) - 8 x = - 2 + 5 ( 2 x + 1 )$$

Whakaoti mō x

$$x = -\frac{7}{5} = -1\frac{2}{5} = -1.4$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$3x-18-8x=-2+5\left(2x+1\right)$$

Pahekotia te 3x me -8x, ka -5x.

$$-5x-18=-2+5\left(2x+1\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x+1.

$$-5x-18=-2+10x+5$$

Tāpirihia te -2 ki te 5, ka 3.

$$-5x-18=3+10x$$

Tangohia te 10x mai i ngā taha e rua.

$$-5x-18-10x=3$$

Pahekotia te -5x me -10x, ka -15x.

$$-15x-18=3$$

Me tāpiri te 18 ki ngā taha e rua.

$$-15x=3+18$$

Tāpirihia te 3 ki te 18, ka 21.

$$-15x=21$$

Whakawehea ngā taha e rua ki te -15.

$$x=\frac{21}{-15}$$

Whakahekea te hautanga \frac{21}{-15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$x=-\frac{7}{5}$$