Whakaoti mō x
x = \frac{5}{2} = 2\frac{1}{2} = 2.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x-6-2\times 2x=14
Whakamahia te āhuatanga tohatoha hei whakarea te 6 ki te 2x-1.
12x-6-4x=14
Whakareatia te 2 ki te 2, ka 4.
8x-6=14
Pahekotia te 12x me -4x, ka 8x.
8x=14+6
Me tāpiri te 6 ki ngā taha e rua.
8x=20
Tāpirihia te 14 ki te 6, ka 20.
x=\frac{20}{8}
Whakawehea ngā taha e rua ki te 8.
x=\frac{5}{2}
Whakahekea te hautanga \frac{20}{8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
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
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