Whakaoti mō x
x=\frac{2}{9}\approx 0.222222222
Graph
Tohaina
Kua tāruatia ki te papatopenga
6x-20+75x=-2
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 4-15x.
81x-20=-2
Pahekotia te 6x me 75x, ka 81x.
81x=-2+20
Me tāpiri te 20 ki ngā taha e rua.
81x=18
Tāpirihia te -2 ki te 20, ka 18.
x=\frac{18}{81}
Whakawehea ngā taha e rua ki te 81.
x=\frac{2}{9}
Whakahekea te hautanga \frac{18}{81} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 9.
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
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}