Whakaoti mō x
x=\frac{5}{16}=0.3125
Graph
Tohaina
Kua tāruatia ki te papatopenga
-9+9x+21x=-2x+1
Tangohia te 15 i te 6, ka -9.
-9+30x=-2x+1
Pahekotia te 9x me 21x, ka 30x.
-9+30x+2x=1
Me tāpiri te 2x ki ngā taha e rua.
-9+32x=1
Pahekotia te 30x me 2x, ka 32x.
32x=1+9
Me tāpiri te 9 ki ngā taha e rua.
32x=10
Tāpirihia te 1 ki te 9, ka 10.
x=\frac{10}{32}
Whakawehea ngā taha e rua ki te 32.
x=\frac{5}{16}
Whakahekea te hautanga \frac{10}{32} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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}