Whakaoti mō x
x=-5
Graph
Pātaitai
Linear Equation
4(x+2)-2(x-5)=8
Tohaina
Kua tāruatia ki te papatopenga
4x+8-2\left(x-5\right)=8
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+2.
4x+8-2x+10=8
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x-5.
2x+8+10=8
Pahekotia te 4x me -2x, ka 2x.
2x+18=8
Tāpirihia te 8 ki te 10, ka 18.
2x=8-18
Tangohia te 18 mai i ngā taha e rua.
2x=-10
Tangohia te 18 i te 8, ka -10.
x=\frac{-10}{2}
Whakawehea ngā taha e rua ki te 2.
x=-5
Whakawehea te -10 ki te 2, kia riro ko -5.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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}