Whakaoti i te 4(v+1)-7=3(v-1)-v

$$4 ( v + 1 ) - 7 = 3 ( v - 1 ) - v$$

Whakaoti mō v

$$v=0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te v+1.

$$4v+4-7=3\left(v-1\right)-v$$

Tangohia te 7 i te 4, ka -3.

$$4v-3=3\left(v-1\right)-v$$

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te v-1.

$$4v-3=3v-3-v$$

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

$$4v-3=2v-3$$

Tangohia te 2v mai i ngā taha e rua.

$$4v-3-2v=-3$$

Pahekotia te 4v me -2v, ka 2v.

$$2v-3=-3$$

Me tāpiri te 3 ki ngā taha e rua.

$$2v=-3+3$$

Tāpirihia te -3 ki te 3, ka 0.

$$2v=0$$

He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te 2 e ōrite ki 0, me ōrite pū te v ki 0.

$$v=0$$