Whakaoti mō x_6
x_{6}=21-y_{5}
Whakaoti mō y_5
y_{5}=21-x_{6}
Tohaina
Kua tāruatia ki te papatopenga
x_{6}+y_{5}=21
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x_{6}=21-y_{5}
Tangohia te y_{5} mai i ngā taha e rua.
x_{6}+y_{5}=21
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
y_{5}=21-x_{6}
Tangohia te x_{6} mai i ngā taha e rua.
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