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

Tohaina

4x=18-12
Tangohia te 12 mai i ngā taha e rua.
4x=6
Tangohia te 12 i te 18, ka 6.
x=\frac{6}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{3}{2}
Whakahekea te hautanga \frac{6}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.