Whakaoti mō x
x = -\frac{9}{2} = -4\frac{1}{2} = -4.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=\left(x+4\right)\times 18
Tē taea kia ōrite te tāupe x ki -4 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 2\left(x+4\right), arā, te tauraro pātahi he tino iti rawa te kitea o x+4,2.
2x=18x+72
Whakamahia te āhuatanga tohatoha hei whakarea te x+4 ki te 18.
2x-18x=72
Tangohia te 18x mai i ngā taha e rua.
-16x=72
Pahekotia te 2x me -18x, ka -16x.
x=\frac{72}{-16}
Whakawehea ngā taha e rua ki te -16.
x=-\frac{9}{2}
Whakahekea te hautanga \frac{72}{-16} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 8.
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}