Whakaoti mō p
p=-20
Tohaina
Kua tāruatia ki te papatopenga
\frac{1}{6}p-\frac{1}{5}p=\frac{2}{3}
Tangohia te \frac{1}{5}p mai i ngā taha e rua.
-\frac{1}{30}p=\frac{2}{3}
Pahekotia te \frac{1}{6}p me -\frac{1}{5}p, ka -\frac{1}{30}p.
p=\frac{2}{3}\left(-30\right)
Me whakarea ngā taha e rua ki te -30, te tau utu o -\frac{1}{30}.
p=\frac{2\left(-30\right)}{3}
Tuhia te \frac{2}{3}\left(-30\right) hei hautanga kotahi.
p=\frac{-60}{3}
Whakareatia te 2 ki te -30, ka -60.
p=-20
Whakawehea te -60 ki te 3, kia riro ko -20.
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