Tīpoka ki ngā ihirangi matua
Whakaoti mō x_1
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

0=x_{1}-1
Me whakarea ngā taha e rua ki te 2. Ko te tau i whakarea ki te kore ka hua ko te kore.
x_{1}-1=0
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x_{1}=1
Me tāpiri te 1 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.