Whakaoti mō x
x=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-10+2\left(x+4\right)=-16
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te x-2.
5x-10+2x+8=-16
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+4.
7x-10+8=-16
Pahekotia te 5x me 2x, ka 7x.
7x-2=-16
Tāpirihia te -10 ki te 8, ka -2.
7x=-16+2
Me tāpiri te 2 ki ngā taha e rua.
7x=-14
Tāpirihia te -16 ki te 2, ka -14.
x=\frac{-14}{7}
Whakawehea ngā taha e rua ki te 7.
x=-2
Whakawehea te -14 ki te 7, kia riro ko -2.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}