Whakaoti mō n
n = \frac{21}{2} = 10\frac{1}{2} = 10.5
Tohaina
Kua tāruatia ki te papatopenga
-2n=-21
Tangohia te 21 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
n=\frac{-21}{-2}
Whakawehea ngā taha e rua ki te -2.
n=\frac{21}{2}
Ka taea te hautanga \frac{-21}{-2} te whakamāmā ki te \frac{21}{2} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Arithmetic
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Poukapa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}