Whakaoti mō x
x=-1
Graph
Tohaina
Kua tāruatia ki te papatopenga
2\left(5x+2\right)-\left(2x+4\right)=-8
Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 3,6.
10x+4-\left(2x+4\right)=-8
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 5x+2.
10x+4-2x-4=-8
Hei kimi i te tauaro o 2x+4, kimihia te tauaro o ia taurangi.
8x+4-4=-8
Pahekotia te 10x me -2x, ka 8x.
8x=-8
Tangohia te 4 i te 4, ka 0.
x=\frac{-8}{8}
Whakawehea ngā taha e rua ki te 8.
x=-1
Whakawehea te -8 ki te 8, kia riro ko -1.
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}