Whakaoti mō x
x = \frac{117}{16} = 7\frac{5}{16} = 7.3125
Graph
Pātaitai
Linear Equation
81-8x+45=8x+9
Tohaina
Kua tāruatia ki te papatopenga
126-8x=8x+9
Tāpirihia te 81 ki te 45, ka 126.
126-8x-8x=9
Tangohia te 8x mai i ngā taha e rua.
126-16x=9
Pahekotia te -8x me -8x, ka -16x.
-16x=9-126
Tangohia te 126 mai i ngā taha e rua.
-16x=-117
Tangohia te 126 i te 9, ka -117.
x=\frac{-117}{-16}
Whakawehea ngā taha e rua ki te -16.
x=\frac{117}{16}
Ka taea te hautanga \frac{-117}{-16} te whakamāmā ki te \frac{117}{16} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
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}