Whakaoti mō x
x = -\frac{5}{4} = -1\frac{1}{4} = -1.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x+9-3x=4
Tangohia te 3x mai i ngā taha e rua.
4x+9=4
Pahekotia te 7x me -3x, ka 4x.
4x=4-9
Tangohia te 9 mai i ngā taha e rua.
4x=-5
Tangohia te 9 i te 4, ka -5.
x=\frac{-5}{4}
Whakawehea ngā taha e rua ki te 4.
x=-\frac{5}{4}
Ka taea te hautanga \frac{-5}{4} te tuhi anō ko -\frac{5}{4} mā te tango i te tohu tōraro.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
y = 3x + 4
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]
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}