Whakaoti mō x
x=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
5\times 3+5\left(2x-7\right)\times \frac{2}{5}=5\left(2x-7\right)
Tē taea kia ōrite te tāupe x ki \frac{7}{2} nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 5\left(2x-7\right), arā, te tauraro pātahi he tino iti rawa te kitea o 2x-7,5.
15+5\left(2x-7\right)\times \frac{2}{5}=5\left(2x-7\right)
Whakareatia te 5 ki te 3, ka 15.
15+2\left(2x-7\right)=5\left(2x-7\right)
Whakareatia te 5 ki te \frac{2}{5}, ka 2.
15+4x-14=5\left(2x-7\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x-7.
1+4x=5\left(2x-7\right)
Tangohia te 14 i te 15, ka 1.
1+4x=10x-35
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x-7.
1+4x-10x=-35
Tangohia te 10x mai i ngā taha e rua.
1-6x=-35
Pahekotia te 4x me -10x, ka -6x.
-6x=-35-1
Tangohia te 1 mai i ngā taha e rua.
-6x=-36
Tangohia te 1 i te -35, ka -36.
x=\frac{-36}{-6}
Whakawehea ngā taha e rua ki te -6.
x=6
Whakawehea te -36 ki te -6, kia riro ko 6.
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}