Whakaoti mō c
c=13
Tohaina
Kua tāruatia ki te papatopenga
13=15\times 0+9\times 0+c
Ko te kore i whakawehea ki te tau ehara te kore ka hua ko te kore.
13=0+9\times 0+c
Whakareatia te 15 ki te 0, ka 0.
13=0+0+c
Whakareatia te 9 ki te 0, ka 0.
13=c
Tāpirihia te 0 ki te 0, ka 0.
c=13
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
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