Whakaoti mō c
c=-\frac{n}{2}+65
Whakaoti mō n
n=130-2c
Tohaina
Kua tāruatia ki te papatopenga
n+2c=130
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2c=130-n
Tangohia te n mai i ngā taha e rua.
\frac{2c}{2}=\frac{130-n}{2}
Whakawehea ngā taha e rua ki te 2.
c=\frac{130-n}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
c=-\frac{n}{2}+65
Whakawehe 130-n ki te 2.
n+2c=130
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
n=130-2c
Tangohia te 2c mai i ngā taha e rua.
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