Whakaoti mō x, y
x=3
y = \frac{9}{2} = 4\frac{1}{2} = 4.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-3=0
Whakaarohia te whārite tuatahi. Whakawehea ngā taha e rua ki te 2. Ko te kore i whakawehea ki te tau ehara te kore ka hua ko te kore.
x=3
Me tāpiri te 3 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
12\times 3-4y=18
Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
36-4y=18
Whakareatia te 12 ki te 3, ka 36.
-4y=18-36
Tangohia te 36 mai i ngā taha e rua.
-4y=-18
Tangohia te 36 i te 18, ka -18.
y=\frac{-18}{-4}
Whakawehea ngā taha e rua ki te -4.
y=\frac{9}{2}
Whakahekea te hautanga \frac{-18}{-4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -2.
x=3 y=\frac{9}{2}
Kua oti te pūnaha te whakatau.
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}