Whakaoti mō x
x=4
Graph
Tohaina
Kua tāruatia ki te papatopenga
120x=80\left(2x-2\right)
Whakareatia te 10 ki te 12, ka 120.
120x=160x-160
Whakamahia te āhuatanga tohatoha hei whakarea te 80 ki te 2x-2.
120x-160x=-160
Tangohia te 160x mai i ngā taha e rua.
-40x=-160
Pahekotia te 120x me -160x, ka -40x.
x=\frac{-160}{-40}
Whakawehea ngā taha e rua ki te -40.
x=4
Whakawehea te -160 ki te -40, kia riro ko 4.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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\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
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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}