Whakaoti mō y
y = -\frac{14}{11} = -1\frac{3}{11} \approx -1.272727273
Graph
Tohaina
Kua tāruatia ki te papatopenga
2\left(13+2y\right)-15y=40
Whakareatia ngā taha e rua o te whārite ki te 5.
26+4y-15y=40
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 13+2y.
26-11y=40
Pahekotia te 4y me -15y, ka -11y.
-11y=40-26
Tangohia te 26 mai i ngā taha e rua.
-11y=14
Tangohia te 26 i te 40, ka 14.
y=\frac{14}{-11}
Whakawehea ngā taha e rua ki te -11.
y=-\frac{14}{11}
Ka taea te hautanga \frac{14}{-11} te tuhi anō ko -\frac{14}{11} 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}