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

Tohaina

7x=y-12
Tangohia te 12 mai i ngā taha e rua.
\frac{7x}{7}=\frac{y-12}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{y-12}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
y=7x+12
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.