Whakaoti mō x
x = -\frac{9}{2} = -4\frac{1}{2} = -4.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
11x=18+15x
Pahekotia te 2x me 9x, ka 11x.
11x-15x=18
Tangohia te 15x mai i ngā taha e rua.
-4x=18
Pahekotia te 11x me -15x, ka -4x.
x=\frac{18}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{9}{2}
Whakahekea te hautanga \frac{18}{-4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 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]
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Whakarerekētanga
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Ngā Tepe
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