Whakaoti mō x
x = -\frac{27}{4} = -6\frac{3}{4} = -6.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x-15=7x+12
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-5.
3x-15-7x=12
Tangohia te 7x mai i ngā taha e rua.
-4x-15=12
Pahekotia te 3x me -7x, ka -4x.
-4x=12+15
Me tāpiri te 15 ki ngā taha e rua.
-4x=27
Tāpirihia te 12 ki te 15, ka 27.
x=\frac{27}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{27}{4}
Ka taea te hautanga \frac{27}{-4} te tuhi anō ko -\frac{27}{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
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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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
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