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

Tohaina

40\times 0.5=x
Me whakarea ngā taha e rua o te whārite ki te 120, arā, te tauraro pātahi he tino iti rawa te kitea o 3,120.
20=x
Whakareatia te 40 ki te 0.5, ka 20.
x=20
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.