Whakaoti mō x
x=0.12
Graph
Tohaina
Kua tāruatia ki te papatopenga
20x=30x-1.2
Whakamahia te āhuatanga tohatoha hei whakarea te 30 ki te x-0.04.
20x-30x=-1.2
Tangohia te 30x mai i ngā taha e rua.
-10x=-1.2
Pahekotia te 20x me -30x, ka -10x.
x=\frac{-1.2}{-10}
Whakawehea ngā taha e rua ki te -10.
x=\frac{-12}{-100}
Whakarohaina te \frac{-1.2}{-10} mā te whakarea i te taurunga me te tauraro ki te 10.
x=\frac{3}{25}
Whakahekea te hautanga \frac{-12}{-100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -4.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Arithmetic
699 * 533
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}