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Whakaoti mō x
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Tohaina

1.2x=12.36
Pahekotia te x me 0.2x, ka 1.2x.
x=\frac{12.36}{1.2}
Whakawehea ngā taha e rua ki te 1.2.
x=\frac{1236}{120}
Whakarohaina te \frac{12.36}{1.2} mā te whakarea i te taurunga me te tauraro ki te 100.
x=\frac{103}{10}
Whakahekea te hautanga \frac{1236}{120} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 12.