Whakaoti mō x
x=8
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-15-4=2\left(x-1\right)+7
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te x-3.
5x-19=2\left(x-1\right)+7
Tangohia te 4 i te -15, ka -19.
5x-19=2x-2+7
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x-1.
5x-19=2x+5
Tāpirihia te -2 ki te 7, ka 5.
5x-19-2x=5
Tangohia te 2x mai i ngā taha e rua.
3x-19=5
Pahekotia te 5x me -2x, ka 3x.
3x=5+19
Me tāpiri te 19 ki ngā taha e rua.
3x=24
Tāpirihia te 5 ki te 19, ka 24.
x=\frac{24}{3}
Whakawehea ngā taha e rua ki te 3.
x=8
Whakawehea te 24 ki te 3, kia riro ko 8.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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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
\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}