Whakaoti mō x
x=20
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+4x+3x+40=220
Whakareatia ngā taha e rua o te whārite ki te 2.
6x+3x+40=220
Pahekotia te 2x me 4x, ka 6x.
9x+40=220
Pahekotia te 6x me 3x, ka 9x.
9x=220-40
Tangohia te 40 mai i ngā taha e rua.
9x=180
Tangohia te 40 i te 220, ka 180.
x=\frac{180}{9}
Whakawehea ngā taha e rua ki te 9.
x=20
Whakawehea te 180 ki te 9, kia riro ko 20.
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}