Whakaoti mō x
x = \frac{180}{11} = 16\frac{4}{11} \approx 16.363636364
Graph
Tohaina
Kua tāruatia ki te papatopenga
10x\times \frac{2}{5}+10x\times \frac{7}{10}=10\times 18
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 10x, arā, te tauraro pātahi he tino iti rawa te kitea o 5,10,x.
\frac{10\times 2}{5}x+10x\times \frac{7}{10}=10\times 18
Tuhia te 10\times \frac{2}{5} hei hautanga kotahi.
\frac{20}{5}x+10x\times \frac{7}{10}=10\times 18
Whakareatia te 10 ki te 2, ka 20.
4x+10x\times \frac{7}{10}=10\times 18
Whakawehea te 20 ki te 5, kia riro ko 4.
4x+7x=10\times 18
Me whakakore te 10 me te 10.
11x=10\times 18
Pahekotia te 4x me 7x, ka 11x.
11x=180
Whakareatia te 10 ki te 18, ka 180.
x=\frac{180}{11}
Whakawehea ngā taha e rua ki te 11.
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