Whakaoti mō z
z=-3
Tohaina
Kua tāruatia ki te papatopenga
-9z=39-12
Tangohia te 12 mai i ngā taha e rua.
-9z=27
Tangohia te 12 i te 39, ka 27.
z=\frac{27}{-9}
Whakawehea ngā taha e rua ki te -9.
z=-3
Whakawehea te 27 ki te -9, kia riro ko -3.
Ngā Tauira
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