Tīpoka ki ngā ihirangi matua
Whakaoti mō x_7
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Whakaoti mō y
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Graph

Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

x_{7}+3=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x_{7}=y-3
Tangohia te 3 mai i ngā taha e rua.