Whakaoti mō x
x=5
Graph
Tohaina
Kua tāruatia ki te papatopenga
45x+15=60x-60
Whakamahia te āhuatanga tohatoha hei whakarea te 60 ki te x-1.
45x+15-60x=-60
Tangohia te 60x mai i ngā taha e rua.
-15x+15=-60
Pahekotia te 45x me -60x, ka -15x.
-15x=-60-15
Tangohia te 15 mai i ngā taha e rua.
-15x=-75
Tangohia te 15 i te -60, ka -75.
x=\frac{-75}{-15}
Whakawehea ngā taha e rua ki te -15.
x=5
Whakawehea te -75 ki te -15, kia riro ko 5.
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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Whakarerekētanga
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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}