Whakaoti i te -2(x+2)+1=x-1

$$-2(x+2)+1 = x-1$$

Whakaoti mō x

$$x=-\frac{2}{3}\approx -0.666666667$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x+2.

$$-2x-4+1=x-1$$

Tāpirihia te -4 ki te 1, ka -3.

$$-2x-3=x-1$$

Tangohia te x mai i ngā taha e rua.

$$-2x-3-x=-1$$

Pahekotia te -2x me -x, ka -3x.

$$-3x-3=-1$$

Me tāpiri te 3 ki ngā taha e rua.

$$-3x=-1+3$$

Tāpirihia te -1 ki te 3, ka 2.

$$-3x=2$$

Whakawehea ngā taha e rua ki te -3.

$$x=\frac{2}{-3}$$

Ka taea te hautanga \frac{2}{-3} te tuhi anō ko -\frac{2}{3} mā te tango i te tohu tōraro.

$$x=-\frac{2}{3}$$