Whakaoti i te 2(z-1)-5=3(3+z)+z

$$2 ( z - 1 ) - 5 = 3 ( 3 + z ) + z$$

Whakaoti mō z

$$z=-8$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te z-1.

$$2z-2-5=3\left(3+z\right)+z$$

Tangohia te 5 i te -2, ka -7.

$$2z-7=3\left(3+z\right)+z$$

Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 3+z.

$$2z-7=9+3z+z$$

Pahekotia te 3z me z, ka 4z.

$$2z-7=9+4z$$

Tangohia te 4z mai i ngā taha e rua.

$$2z-7-4z=9$$

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

$$-2z-7=9$$

Me tāpiri te 7 ki ngā taha e rua.

$$-2z=9+7$$

Tāpirihia te 9 ki te 7, ka 16.

$$-2z=16$$

Whakawehea ngā taha e rua ki te -2.

$$z=\frac{16}{-2}$$

Whakawehea te 16 ki te -2, kia riro ko -8.

$$z=-8$$