Whakaoti mō x
x=12
Graph
Tohaina
Kua tāruatia ki te papatopenga
-4\left(75-x\right)=7\left(x-48\right)
Tē taea kia ōrite te tāupe x ki 48 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 4\left(x-48\right), arā, te tauraro pātahi he tino iti rawa te kitea o 48-x,4.
-300+4x=7\left(x-48\right)
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te 75-x.
-300+4x=7x-336
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x-48.
-300+4x-7x=-336
Tangohia te 7x mai i ngā taha e rua.
-300-3x=-336
Pahekotia te 4x me -7x, ka -3x.
-3x=-336+300
Me tāpiri te 300 ki ngā taha e rua.
-3x=-36
Tāpirihia te -336 ki te 300, ka -36.
x=\frac{-36}{-3}
Whakawehea ngā taha e rua ki te -3.
x=12
Whakawehea te -36 ki te -3, kia riro ko 12.
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}