Whakaoti mō m
m=40
Tohaina
Kua tāruatia ki te papatopenga
m\times 5=230-30
Tangohia te 30 mai i ngā taha e rua.
m\times 5=200
Tangohia te 30 i te 230, ka 200.
m=\frac{200}{5}
Whakawehea ngā taha e rua ki te 5.
m=40
Whakawehea te 200 ki te 5, kia riro ko 40.
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