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