Whakaoti mō x
x=\frac{5}{6}\approx 0.833333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
8x-20+2x=-2\left(x+5\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2x-5.
10x-20=-2\left(x+5\right)
Pahekotia te 8x me 2x, ka 10x.
10x-20=-2x-10
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x+5.
10x-20+2x=-10
Me tāpiri te 2x ki ngā taha e rua.
12x-20=-10
Pahekotia te 10x me 2x, ka 12x.
12x=-10+20
Me tāpiri te 20 ki ngā taha e rua.
12x=10
Tāpirihia te -10 ki te 20, ka 10.
x=\frac{10}{12}
Whakawehea ngā taha e rua ki te 12.
x=\frac{5}{6}
Whakahekea te hautanga \frac{10}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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}