Whakaoti mō x
x=-\frac{2}{3}\approx -0.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
100+15x=90
Pahekotia te -x me 16x, ka 15x.
15x=90-100
Tangohia te 100 mai i ngā taha e rua.
15x=-10
Tangohia te 100 i te 90, ka -10.
x=\frac{-10}{15}
Whakawehea ngā taha e rua ki te 15.
x=-\frac{2}{3}
Whakahekea te hautanga \frac{-10}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
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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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}