Whakaoti mō z
z=3
Tohaina
Kua tāruatia ki te papatopenga
7z-3=18
Tāpirihia te 12 ki te 6, ka 18.
7z=18+3
Me tāpiri te 3 ki ngā taha e rua.
7z=21
Tāpirihia te 18 ki te 3, ka 21.
z=\frac{21}{7}
Whakawehea ngā taha e rua ki te 7.
z=3
Whakawehea te 21 ki te 7, kia riro ko 3.
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