Whakaoti mō x
x=38
Graph
Tohaina
Kua tāruatia ki te papatopenga
78-2x=2
Pahekotia te -x me -x, ka -2x.
-2x=2-78
Tangohia te 78 mai i ngā taha e rua.
-2x=-76
Tangohia te 78 i te 2, ka -76.
x=\frac{-76}{-2}
Whakawehea ngā taha e rua ki te -2.
x=38
Whakawehea te -76 ki te -2, kia riro ko 38.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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}