Whakaoti mō c
c=40
Tohaina
Kua tāruatia ki te papatopenga
2.5c=75+25
Me tāpiri te 25 ki ngā taha e rua.
2.5c=100
Tāpirihia te 75 ki te 25, ka 100.
c=\frac{100}{2.5}
Whakawehea ngā taha e rua ki te 2.5.
c=\frac{1000}{25}
Whakarohaina te \frac{100}{2.5} mā te whakarea i te taurunga me te tauraro ki te 10.
c=40
Whakawehea te 1000 ki te 25, kia riro ko 40.
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