Whakaoti mō α
\alpha =\frac{m-4}{2}
Whakaoti mō m
m=2\left(\alpha +2\right)
Tohaina
Kua tāruatia ki te papatopenga
2\alpha =m-4
Tangohia te 4 mai i ngā taha e rua.
\frac{2\alpha }{2}=\frac{m-4}{2}
Whakawehea ngā taha e rua ki te 2.
\alpha =\frac{m-4}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
\alpha =\frac{m}{2}-2
Whakawehe m-4 ki te 2.
m=2\alpha +4
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
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