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Ngā Raru Ōrite mai i te Rapu Tukutuku

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20000\left(1+\frac{x}{100}\right)\times 2=2247200
Whakareatia ngā taha e rua o te whārite ki te 100.
40000\left(1+\frac{x}{100}\right)=2247200
Whakareatia te 20000 ki te 2, ka 40000.
40000+40000\times \frac{x}{100}=2247200
Whakamahia te āhuatanga tohatoha hei whakarea te 40000 ki te 1+\frac{x}{100}.
40000+400x=2247200
Whakakorea atu te tauwehe pūnoa nui rawa 100 i roto i te 40000 me te 100.
400x=2247200-40000
Tangohia te 40000 mai i ngā taha e rua.
400x=2207200
Tangohia te 40000 i te 2247200, ka 2207200.
x=\frac{2207200}{400}
Whakawehea ngā taha e rua ki te 400.
x=5518
Whakawehea te 2207200 ki te 400, kia riro ko 5518.