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

Tohaina

10+x=-2
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x=-2-10
Tangohia te 10 mai i ngā taha e rua.
x=-12
Tangohia te 10 i te -2, ka -12.