Whakaoti mō a
a=-17
Tohaina
Kua tāruatia ki te papatopenga
2\left(a-4\right)=7\left(a+11\right)
Me whakarea ngā taha e rua o te whārite ki te 14, arā, te tauraro pātahi he tino iti rawa te kitea o 7,2.
2a-8=7\left(a+11\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te a-4.
2a-8=7a+77
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te a+11.
2a-8-7a=77
Tangohia te 7a mai i ngā taha e rua.
-5a-8=77
Pahekotia te 2a me -7a, ka -5a.
-5a=77+8
Me tāpiri te 8 ki ngā taha e rua.
-5a=85
Tāpirihia te 77 ki te 8, ka 85.
a=\frac{85}{-5}
Whakawehea ngā taha e rua ki te -5.
a=-17
Whakawehea te 85 ki te -5, kia riro ko -17.
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}