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Whakaoti mō x
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Tohaina

\frac{1}{20}x=600
Whakahekea te hautanga \frac{5}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
x=600\times 20
Me whakarea ngā taha e rua ki te 20, te tau utu o \frac{1}{20}.
x=12000
Whakareatia te 600 ki te 20, ka 12000.