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

Tohaina

13000+x=7000
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x=7000-13000
Tangohia te 13000 mai i ngā taha e rua.
x=-6000
Tangohia te 13000 i te 7000, ka -6000.