Whakaoti mō p_100
p_{100}=-\frac{Q}{10}+20
Whakaoti mō Q
Q=200-10p_{100}
Tohaina
Kua tāruatia ki te papatopenga
200-10p_{100}=Q
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-10p_{100}=Q-200
Tangohia te 200 mai i ngā taha e rua.
\frac{-10p_{100}}{-10}=\frac{Q-200}{-10}
Whakawehea ngā taha e rua ki te -10.
p_{100}=\frac{Q-200}{-10}
Mā te whakawehe ki te -10 ka wetekia te whakareanga ki te -10.
p_{100}=-\frac{Q}{10}+20
Whakawehe Q-200 ki te -10.
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