Tīpoka ki ngā ihirangi matua
Whakaoti mō X
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Tohaina

X=\frac{18}{-4}
Whakawehea ngā taha e rua ki te -4.
X=-\frac{9}{2}
Whakahekea te hautanga \frac{18}{-4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.