Whakaoti mō n
n=39
Tohaina
Kua tāruatia ki te papatopenga
\frac{2}{3}n=19+7
Me tāpiri te 7 ki ngā taha e rua.
\frac{2}{3}n=26
Tāpirihia te 19 ki te 7, ka 26.
n=26\times \frac{3}{2}
Me whakarea ngā taha e rua ki te \frac{3}{2}, te tau utu o \frac{2}{3}.
n=\frac{26\times 3}{2}
Tuhia te 26\times \frac{3}{2} hei hautanga kotahi.
n=\frac{78}{2}
Whakareatia te 26 ki te 3, ka 78.
n=39
Whakawehea te 78 ki te 2, kia riro ko 39.
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