Whakaoti mō x
x = -\frac{66}{7} = -9\frac{3}{7} \approx -9.428571429
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x-14\left(-5\right)=4
Tangohia te 17 i te 12, ka -5.
7x-\left(-70\right)=4
Whakareatia te 14 ki te -5, ka -70.
7x+70=4
Ko te tauaro o -70 ko 70.
7x=4-70
Tangohia te 70 mai i ngā taha e rua.
7x=-66
Tangohia te 70 i te 4, ka -66.
x=\frac{-66}{7}
Whakawehea ngā taha e rua ki te 7.
x=-\frac{66}{7}
Ka taea te hautanga \frac{-66}{7} te tuhi anō ko -\frac{66}{7} 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}