Whakaoti mō m
m=\frac{d-n}{7}
Whakaoti mō d
d=7m+n
Tohaina
Kua tāruatia ki te papatopenga
7m=d-n
Tangohia te n mai i ngā taha e rua.
\frac{7m}{7}=\frac{d-n}{7}
Whakawehea ngā taha e rua ki te 7.
m=\frac{d-n}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
d=n+7m
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
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