Whakaoti mō n
n=180
Tohaina
Kua tāruatia ki te papatopenga
995=100+5n-5
Whakamahia te āhuatanga tohatoha hei whakarea te n-1 ki te 5.
995=95+5n
Tangohia te 5 i te 100, ka 95.
95+5n=995
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
5n=995-95
Tangohia te 95 mai i ngā taha e rua.
5n=900
Tangohia te 95 i te 995, ka 900.
n=\frac{900}{5}
Whakawehea ngā taha e rua ki te 5.
n=180
Whakawehea te 900 ki te 5, kia riro ko 180.
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