Whakaoti mō x
x = \frac{7}{2} = 3\frac{1}{2} = 3.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x+5+x=19
Me tāpiri te x ki ngā taha e rua.
4x+5=19
Pahekotia te 3x me x, ka 4x.
4x=19-5
Tangohia te 5 mai i ngā taha e rua.
4x=14
Tangohia te 5 i te 19, ka 14.
x=\frac{14}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{7}{2}
Whakahekea te hautanga \frac{14}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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}