Whakaoti mō x
x = \frac{40}{39} = 1\frac{1}{39} \approx 1.025641026
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{39}{20}x=2
Pahekotia te \frac{7}{4}x me \frac{1}{5}x, ka \frac{39}{20}x.
x=2\times \frac{20}{39}
Me whakarea ngā taha e rua ki te \frac{20}{39}, te tau utu o \frac{39}{20}.
x=\frac{2\times 20}{39}
Tuhia te 2\times \frac{20}{39} hei hautanga kotahi.
x=\frac{40}{39}
Whakareatia te 2 ki te 20, ka 40.
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