Whakaoti mō n
n=-75
Tohaina
Kua tāruatia ki te papatopenga
10n\times 10\times \frac{-4}{100}=300
Tē taea kia ōrite te tāupe n ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 300n, arā, te tauraro pātahi he tino iti rawa te kitea o 30,100,n.
100n\times \frac{-4}{100}=300
Whakareatia te 10 ki te 10, ka 100.
100n\left(-\frac{1}{25}\right)=300
Whakahekea te hautanga \frac{-4}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
\frac{100\left(-1\right)}{25}n=300
Tuhia te 100\left(-\frac{1}{25}\right) hei hautanga kotahi.
\frac{-100}{25}n=300
Whakareatia te 100 ki te -1, ka -100.
-4n=300
Whakawehea te -100 ki te 25, kia riro ko -4.
n=\frac{300}{-4}
Whakawehea ngā taha e rua ki te -4.
n=-75
Whakawehea te 300 ki te -4, kia riro ko -75.
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