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Whakaoti mō x
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x-\frac{7}{20}x=1500
Whakahekea te hautanga \frac{35}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
\frac{13}{20}x=1500
Pahekotia te x me -\frac{7}{20}x, ka \frac{13}{20}x.
x=1500\times \frac{20}{13}
Me whakarea ngā taha e rua ki te \frac{20}{13}, te tau utu o \frac{13}{20}.
x=\frac{1500\times 20}{13}
Tuhia te 1500\times \frac{20}{13} hei hautanga kotahi.
x=\frac{30000}{13}
Whakareatia te 1500 ki te 20, ka 30000.