Whakaoti mō x
x=-11.8
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.3x-2.15-0.8x=3.75
Tangohia te 0.8x mai i ngā taha e rua.
-0.5x-2.15=3.75
Pahekotia te 0.3x me -0.8x, ka -0.5x.
-0.5x=3.75+2.15
Me tāpiri te 2.15 ki ngā taha e rua.
-0.5x=5.9
Tāpirihia te 3.75 ki te 2.15, ka 5.9.
x=\frac{5.9}{-0.5}
Whakawehea ngā taha e rua ki te -0.5.
x=\frac{59}{-5}
Whakarohaina te \frac{5.9}{-0.5} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-\frac{59}{5}
Ka taea te hautanga \frac{59}{-5} te tuhi anō ko -\frac{59}{5} mā te tango i te tohu tōraro.
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}