x - ( 20 \times 30 \% ) = 20
Whakaoti mō x
x=26
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-20\times \frac{3}{10}=20
Whakahekea te hautanga \frac{30}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.
x-\frac{20\times 3}{10}=20
Tuhia te 20\times \frac{3}{10} hei hautanga kotahi.
x-\frac{60}{10}=20
Whakareatia te 20 ki te 3, ka 60.
x-6=20
Whakawehea te 60 ki te 10, kia riro ko 6.
x=20+6
Me tāpiri te 6 ki ngā taha e rua.
x=26
Tāpirihia te 20 ki te 6, ka 26.
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