Whakaoti mō x
x=-7
Graph
Tohaina
Kua tāruatia ki te papatopenga
15x+4-5x=-66
Tangohia te 5x mai i ngā taha e rua.
10x+4=-66
Pahekotia te 15x me -5x, ka 10x.
10x=-66-4
Tangohia te 4 mai i ngā taha e rua.
10x=-70
Tangohia te 4 i te -66, ka -70.
x=\frac{-70}{10}
Whakawehea ngā taha e rua ki te 10.
x=-7
Whakawehea te -70 ki te 10, kia riro ko -7.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Arithmetic
699 * 533
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]
whārite Simultaneous
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Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}