Whakaoti mō E
E=-\frac{42}{25d}
d\neq 0
Whakaoti mō d
d=-\frac{42}{25E}
E\neq 0
Tohaina
Kua tāruatia ki te papatopenga
Ed=\frac{28}{100}\times \frac{7-10}{3.3-2.8}
Whakarohaina te \frac{2.8}{10} mā te whakarea i te taurunga me te tauraro ki te 10.
Ed=\frac{7}{25}\times \frac{7-10}{3.3-2.8}
Whakahekea te hautanga \frac{28}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
Ed=\frac{7}{25}\times \frac{-3}{3.3-2.8}
Tangohia te 10 i te 7, ka -3.
Ed=\frac{7}{25}\times \frac{-3}{0.5}
Tangohia te 2.8 i te 3.3, ka 0.5.
Ed=\frac{7}{25}\times \frac{-30}{5}
Whakarohaina te \frac{-3}{0.5} mā te whakarea i te taurunga me te tauraro ki te 10.
Ed=\frac{7}{25}\left(-6\right)
Whakawehea te -30 ki te 5, kia riro ko -6.
Ed=-\frac{42}{25}
Whakareatia te \frac{7}{25} ki te -6, ka -\frac{42}{25}.
dE=-\frac{42}{25}
He hanga arowhānui tō te whārite.
\frac{dE}{d}=-\frac{\frac{42}{25}}{d}
Whakawehea ngā taha e rua ki te d.
E=-\frac{\frac{42}{25}}{d}
Mā te whakawehe ki te d ka wetekia te whakareanga ki te d.
E=-\frac{42}{25d}
Whakawehe -\frac{42}{25} ki te d.
Ed=\frac{28}{100}\times \frac{7-10}{3.3-2.8}
Whakarohaina te \frac{2.8}{10} mā te whakarea i te taurunga me te tauraro ki te 10.
Ed=\frac{7}{25}\times \frac{7-10}{3.3-2.8}
Whakahekea te hautanga \frac{28}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
Ed=\frac{7}{25}\times \frac{-3}{3.3-2.8}
Tangohia te 10 i te 7, ka -3.
Ed=\frac{7}{25}\times \frac{-3}{0.5}
Tangohia te 2.8 i te 3.3, ka 0.5.
Ed=\frac{7}{25}\times \frac{-30}{5}
Whakarohaina te \frac{-3}{0.5} mā te whakarea i te taurunga me te tauraro ki te 10.
Ed=\frac{7}{25}\left(-6\right)
Whakawehea te -30 ki te 5, kia riro ko -6.
Ed=-\frac{42}{25}
Whakareatia te \frac{7}{25} ki te -6, ka -\frac{42}{25}.
\frac{Ed}{E}=-\frac{\frac{42}{25}}{E}
Whakawehea ngā taha e rua ki te E.
d=-\frac{\frac{42}{25}}{E}
Mā te whakawehe ki te E ka wetekia te whakareanga ki te E.
d=-\frac{42}{25E}
Whakawehe -\frac{42}{25} ki te E.
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