Whakaoti mō y
y=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
8\left(y+2\right)-3\left(4y-1\right)=9\left(1-y\right)
Whakareatia te 4 ki te 2, ka 8.
8y+16-3\left(4y-1\right)=9\left(1-y\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 8 ki te y+2.
8y+16-12y+3=9\left(1-y\right)
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 4y-1.
-4y+16+3=9\left(1-y\right)
Pahekotia te 8y me -12y, ka -4y.
-4y+19=9\left(1-y\right)
Tāpirihia te 16 ki te 3, ka 19.
-4y+19=9-9y
Whakamahia te āhuatanga tohatoha hei whakarea te 9 ki te 1-y.
-4y+19+9y=9
Me tāpiri te 9y ki ngā taha e rua.
5y+19=9
Pahekotia te -4y me 9y, ka 5y.
5y=9-19
Tangohia te 19 mai i ngā taha e rua.
5y=-10
Tangohia te 19 i te 9, ka -10.
y=\frac{-10}{5}
Whakawehea ngā taha e rua ki te 5.
y=-2
Whakawehea te -10 ki te 5, kia riro ko -2.
Ngā Tauira
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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
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}