Whakaoti mō x
x=-4
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x-5x-15=2x-3
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te x+3.
-x-15=2x-3
Pahekotia te 4x me -5x, ka -x.
-x-15-2x=-3
Tangohia te 2x mai i ngā taha e rua.
-3x-15=-3
Pahekotia te -x me -2x, ka -3x.
-3x=-3+15
Me tāpiri te 15 ki ngā taha e rua.
-3x=12
Tāpirihia te -3 ki te 15, ka 12.
x=\frac{12}{-3}
Whakawehea ngā taha e rua ki te -3.
x=-4
Whakawehea te 12 ki te -3, kia riro ko -4.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Arithmetic
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Poukapa
\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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Whakaurunga
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Ngā Tepe
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