Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
3\left(x-1\right)+5x-7=6
Me whakarea ngā taha e rua o te whārite ki te 4, arā, te tauraro pātahi he tino iti rawa te kitea o 4,2.
3x-3+5x-7=6
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-1.
8x-3-7=6
Pahekotia te 3x me 5x, ka 8x.
8x-10=6
Tangohia te 7 i te -3, ka -10.
8x=6+10
Me tāpiri te 10 ki ngā taha e rua.
8x=16
Tāpirihia te 6 ki te 10, ka 16.
x=\frac{16}{8}
Whakawehea ngā taha e rua ki te 8.
x=2
Whakawehea te 16 ki te 8, kia riro ko 2.
Ngā Tauira
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{ 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
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}