Whakaoti mō X
X=90-\alpha
Whakaoti mō α
\alpha =90-X
Tohaina
Kua tāruatia ki te papatopenga
90-X=\alpha
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-X=\alpha -90
Tangohia te 90 mai i ngā taha e rua.
\frac{-X}{-1}=\frac{\alpha -90}{-1}
Whakawehea ngā taha e rua ki te -1.
X=\frac{\alpha -90}{-1}
Mā te whakawehe ki te -1 ka wetekia te whakareanga ki te -1.
X=90-\alpha
Whakawehe \alpha -90 ki te -1.
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