Whakaoti mō z
z=4
Tohaina
Kua tāruatia ki te papatopenga
2z+19-6z=3
Tangohia te 6z mai i ngā taha e rua.
-4z+19=3
Pahekotia te 2z me -6z, ka -4z.
-4z=3-19
Tangohia te 19 mai i ngā taha e rua.
-4z=-16
Tangohia te 19 i te 3, ka -16.
z=\frac{-16}{-4}
Whakawehea ngā taha e rua ki te -4.
z=4
Whakawehea te -16 ki te -4, kia riro ko 4.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
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}