Whakaoti mō C
C=800-10n
Whakaoti mō n
n=-\frac{C}{10}+80
Tohaina
Kua tāruatia ki te papatopenga
C=0n^{2}-10n+800
Whakareatia te 0 ki te 25, ka 0.
C=0-10n+800
Ko te tau i whakarea ki te kore ka hua ko te kore.
C=800-10n
Tāpirihia te 0 ki te 800, ka 800.
C=0n^{2}-10n+800
Whakareatia te 0 ki te 25, ka 0.
C=0-10n+800
Ko te tau i whakarea ki te kore ka hua ko te kore.
C=800-10n
Tāpirihia te 0 ki te 800, ka 800.
800-10n=C
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-10n=C-800
Tangohia te 800 mai i ngā taha e rua.
\frac{-10n}{-10}=\frac{C-800}{-10}
Whakawehea ngā taha e rua ki te -10.
n=\frac{C-800}{-10}
Mā te whakawehe ki te -10 ka wetekia te whakareanga ki te -10.
n=-\frac{C}{10}+80
Whakawehe C-800 ki te -10.
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