Whakaoti mō x
x=2
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Tohaina
Kua tāruatia ki te papatopenga
9\left(-x\right)+18+3\left(x-2\right)=0
Whakamahia te āhuatanga tohatoha hei whakarea te 9 ki te -x+2.
9\left(-x\right)+18+3x-6=0
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-2.
9\left(-x\right)+12+3x=0
Tangohia te 6 i te 18, ka 12.
9\left(-x\right)+3x=-12
Tangohia te 12 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
-9x+3x=-12
Whakareatia te 9 ki te -1, ka -9.
-6x=-12
Pahekotia te -9x me 3x, ka -6x.
x=\frac{-12}{-6}
Whakawehea ngā taha e rua ki te -6.
x=2
Whakawehea te -12 ki te -6, kia riro ko 2.
Ngā Tauira
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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]
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}