Whakaoti mō L
L=\frac{P-2w}{2}
Whakaoti mō P
P=2\left(w+L\right)
Tohaina
Kua tāruatia ki te papatopenga
2w+2L=P
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2L=P-2w
Tangohia te 2w mai i ngā taha e rua.
\frac{2L}{2}=\frac{P-2w}{2}
Whakawehea ngā taha e rua ki te 2.
L=\frac{P-2w}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
L=\frac{P}{2}-w
Whakawehe P-2w ki te 2.
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