Whakaoti mō x
x=18
Graph
Tohaina
Kua tāruatia ki te papatopenga
52.2-x=1.9x
Tāpirihia te 52 ki te 0.2, ka 52.2.
52.2-x-1.9x=0
Tangohia te 1.9x mai i ngā taha e rua.
52.2-2.9x=0
Pahekotia te -x me -1.9x, ka -2.9x.
-2.9x=-52.2
Tangohia te 52.2 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-52.2}{-2.9}
Whakawehea ngā taha e rua ki te -2.9.
x=\frac{-522}{-29}
Whakarohaina te \frac{-52.2}{-2.9} mā te whakarea i te taurunga me te tauraro ki te 10.
x=18
Whakawehea te -522 ki te -29, kia riro ko 18.
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}