Whakaoti mō x
x = \frac{5}{2} = 2\frac{1}{2} = 2.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-2=7+x+1
Pahekotia te 3x me 2x, ka 5x.
5x-2=8+x
Tāpirihia te 7 ki te 1, ka 8.
5x-2-x=8
Tangohia te x mai i ngā taha e rua.
4x-2=8
Pahekotia te 5x me -x, ka 4x.
4x=8+2
Me tāpiri te 2 ki ngā taha e rua.
4x=10
Tāpirihia te 8 ki te 2, ka 10.
x=\frac{10}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{5}{2}
Whakahekea te hautanga \frac{10}{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]
whārite Simultaneous
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Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
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