Whakaoti mō x
x = -\frac{35}{13} = -2\frac{9}{13} \approx -2.692307692
Graph
Tohaina
Kua tāruatia ki te papatopenga
40-4x=5-10x-7x
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 1-2x.
40-4x=5-17x
Pahekotia te -10x me -7x, ka -17x.
40-4x+17x=5
Me tāpiri te 17x ki ngā taha e rua.
40+13x=5
Pahekotia te -4x me 17x, ka 13x.
13x=5-40
Tangohia te 40 mai i ngā taha e rua.
13x=-35
Tangohia te 40 i te 5, ka -35.
x=\frac{-35}{13}
Whakawehea ngā taha e rua ki te 13.
x=-\frac{35}{13}
Ka taea te hautanga \frac{-35}{13} te tuhi anō ko -\frac{35}{13} 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}