Whakaoti mō n
n=10
Tohaina
Kua tāruatia ki te papatopenga
420=\left(3+39\right)n
Whakareatia ngā taha e rua o te whārite ki te 2.
420=42n
Tāpirihia te 3 ki te 39, ka 42.
42n=420
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
n=\frac{420}{42}
Whakawehea ngā taha e rua ki te 42.
n=10
Whakawehea te 420 ki te 42, kia riro ko 10.
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