Whakaoti mō x
x=-\frac{4}{7}\approx -0.571428571
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2x-3-\left(3x-1\right)=2x+2
Whakareatia ngā taha e rua o te whārite ki te 2.
-2x-3-3x-\left(-1\right)=2x+2
Hei kimi i te tauaro o 3x-1, kimihia te tauaro o ia taurangi.
-2x-3-3x+1=2x+2
Ko te tauaro o -1 ko 1.
-5x-3+1=2x+2
Pahekotia te -2x me -3x, ka -5x.
-5x-2=2x+2
Tāpirihia te -3 ki te 1, ka -2.
-5x-2-2x=2
Tangohia te 2x mai i ngā taha e rua.
-7x-2=2
Pahekotia te -5x me -2x, ka -7x.
-7x=2+2
Me tāpiri te 2 ki ngā taha e rua.
-7x=4
Tāpirihia te 2 ki te 2, ka 4.
x=\frac{4}{-7}
Whakawehea ngā taha e rua ki te -7.
x=-\frac{4}{7}
Ka taea te hautanga \frac{4}{-7} te tuhi anō ko -\frac{4}{7} mā te tango i te tohu tōraro.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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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}