Whakaoti i te 2-7z=13/3

$$2 - 7 z = \frac { 13 } { 3 }$$

Whakaoti mō z

$$z=-\frac{1}{3}\approx -0.333333333$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 2 mai i ngā taha e rua.

$$-7z=\frac{13}{3}-2$$

Me tahuri te 2 ki te hautau \frac{6}{3}.

$$-7z=\frac{13}{3}-\frac{6}{3}$$

Tā te mea he rite te tauraro o \frac{13}{3} me \frac{6}{3}, me tango rāua mā te tango i ō raua taurunga.

$$-7z=\frac{13-6}{3}$$

Tangohia te 6 i te 13, ka 7.

$$-7z=\frac{7}{3}$$

Whakawehea ngā taha e rua ki te -7.

$$z=\frac{\frac{7}{3}}{-7}$$

Tuhia te \frac{\frac{7}{3}}{-7} hei hautanga kotahi.

$$z=\frac{7}{3\left(-7\right)}$$

Whakareatia te 3 ki te -7, ka -21.

$$z=\frac{7}{-21}$$

Whakahekea te hautanga \frac{7}{-21} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

$$z=-\frac{1}{3}$$