x40 \% =4000
Whakaoti mō x
x=10000
Graph
Tohaina
Kua tāruatia ki te papatopenga
x\times \frac{2}{5}=4000
Whakahekea te hautanga \frac{40}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.
x=4000\times \frac{5}{2}
Me whakarea ngā taha e rua ki te \frac{5}{2}, te tau utu o \frac{2}{5}.
x=\frac{4000\times 5}{2}
Tuhia te 4000\times \frac{5}{2} hei hautanga kotahi.
x=\frac{20000}{2}
Whakareatia te 4000 ki te 5, ka 20000.
x=10000
Whakawehea te 20000 ki te 2, kia riro ko 10000.
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