Whakaoti mō p
p=\frac{2}{5}=0.4
Tohaina
Kua tāruatia ki te papatopenga
50+150p-250p=10
Tangohia te 250p mai i ngā taha e rua.
50-100p=10
Pahekotia te 150p me -250p, ka -100p.
-100p=10-50
Tangohia te 50 mai i ngā taha e rua.
-100p=-40
Tangohia te 50 i te 10, ka -40.
p=\frac{-40}{-100}
Whakawehea ngā taha e rua ki te -100.
p=\frac{2}{5}
Whakahekea te hautanga \frac{-40}{-100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -20.
Ngā Tauira
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