Whakaoti mō f
f=-2
Tohaina
Kua tāruatia ki te papatopenga
23f-41-54f=21
Tangohia te 54f mai i ngā taha e rua.
-31f-41=21
Pahekotia te 23f me -54f, ka -31f.
-31f=21+41
Me tāpiri te 41 ki ngā taha e rua.
-31f=62
Tāpirihia te 21 ki te 41, ka 62.
f=\frac{62}{-31}
Whakawehea ngā taha e rua ki te -31.
f=-2
Whakawehea te 62 ki te -31, kia riro ko -2.
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