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