Whakaoti mō x
x=-\frac{2}{5}=-0.4
Graph
Pātaitai
Linear Equation
5 raruraru e ōrite ana ki:
\frac { 2 x - 1 } { 3 } = \frac { x + 2 } { 4 } - 1
Tohaina
Kua tāruatia ki te papatopenga
4\left(2x-1\right)=3\left(x+2\right)-12
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 3,4.
8x-4=3\left(x+2\right)-12
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2x-1.
8x-4=3x+6-12
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x+2.
8x-4=3x-6
Tangohia te 12 i te 6, ka -6.
8x-4-3x=-6
Tangohia te 3x mai i ngā taha e rua.
5x-4=-6
Pahekotia te 8x me -3x, ka 5x.
5x=-6+4
Me tāpiri te 4 ki ngā taha e rua.
5x=-2
Tāpirihia te -6 ki te 4, ka -2.
x=\frac{-2}{5}
Whakawehea ngā taha e rua ki te 5.
x=-\frac{2}{5}
Ka taea te hautanga \frac{-2}{5} te tuhi anō ko -\frac{2}{5} mā te tango i te tohu tōraro.
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}