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Whakaoti mō x
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Tohaina

\frac{520}{2}x=580
Whakareatia te 520 ki te \frac{1}{2}, ka \frac{520}{2}.
260x=580
Whakawehea te 520 ki te 2, kia riro ko 260.
x=\frac{580}{260}
Whakawehea ngā taha e rua ki te 260.
x=\frac{29}{13}
Whakahekea te hautanga \frac{580}{260} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.