Whakaoti mō l
l=5
Tohaina
Kua tāruatia ki te papatopenga
330\times 1000=\left(10^{3}+20l\right)\times 300
Tātaihia te 10 mā te pū o 3, kia riro ko 1000.
330000=\left(10^{3}+20l\right)\times 300
Whakareatia te 330 ki te 1000, ka 330000.
330000=\left(1000+20l\right)\times 300
Tātaihia te 10 mā te pū o 3, kia riro ko 1000.
330000=300000+6000l
Whakamahia te āhuatanga tohatoha hei whakarea te 1000+20l ki te 300.
300000+6000l=330000
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
6000l=330000-300000
Tangohia te 300000 mai i ngā taha e rua.
6000l=30000
Tangohia te 300000 i te 330000, ka 30000.
l=\frac{30000}{6000}
Whakawehea ngā taha e rua ki te 6000.
l=5
Whakawehea te 30000 ki te 6000, kia riro ko 5.
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