Whakaoti mō v
v = \frac{2660}{17} = 156\frac{8}{17} \approx 156.470588235
Tohaina
Kua tāruatia ki te papatopenga
40\times 1.33+40v\left(-\frac{1}{40}\right)=-2v\left(1.33-1\right)
Tē taea kia ōrite te tāupe v ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 40v, arā, te tauraro pātahi he tino iti rawa te kitea o v,40,-20.
53.2+40v\left(-\frac{1}{40}\right)=-2v\left(1.33-1\right)
Whakareatia te 40 ki te 1.33, ka 53.2.
53.2-v=-2v\left(1.33-1\right)
Me whakakore te 40 me te 40.
53.2-v=-2v\times 0.33
Tangohia te 1 i te 1.33, ka 0.33.
53.2-v=-0.66v
Whakareatia te -2 ki te 0.33, ka -0.66.
53.2-v+0.66v=0
Me tāpiri te 0.66v ki ngā taha e rua.
53.2-0.34v=0
Pahekotia te -v me 0.66v, ka -0.34v.
-0.34v=-53.2
Tangohia te 53.2 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
v=\frac{-53.2}{-0.34}
Whakawehea ngā taha e rua ki te -0.34.
v=\frac{-5320}{-34}
Whakarohaina te \frac{-53.2}{-0.34} mā te whakarea i te taurunga me te tauraro ki te 100.
v=\frac{2660}{17}
Whakahekea te hautanga \frac{-5320}{-34} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -2.
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