Whakaoti mō y
y=10
Graph
Tohaina
Kua tāruatia ki te papatopenga
-\frac{1}{2}y=1-6
Tangohia te 6 mai i ngā taha e rua.
-\frac{1}{2}y=-5
Tangohia te 6 i te 1, ka -5.
y=-5\left(-2\right)
Me whakarea ngā taha e rua ki te -2, te tau utu o -\frac{1}{2}.
y=10
Whakareatia te -5 ki te -2, ka 10.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\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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