Whakaoti mō x
x=-1+\frac{5}{y}
y\neq 0
Whakaoti mō y
y=\frac{5}{x+1}
x\neq -1
Graph
Tohaina
Kua tāruatia ki te papatopenga
xy+y=5
Whakamahia te āhuatanga tohatoha hei whakarea te x+1 ki te y.
xy=5-y
Tangohia te y mai i ngā taha e rua.
yx=5-y
He hanga arowhānui tō te whārite.
\frac{yx}{y}=\frac{5-y}{y}
Whakawehea ngā taha e rua ki te y.
x=\frac{5-y}{y}
Mā te whakawehe ki te y ka wetekia te whakareanga ki te y.
x=-1+\frac{5}{y}
Whakawehe 5-y ki te y.
\frac{\left(x+1\right)y}{x+1}=\frac{5}{x+1}
Whakawehea ngā taha e rua ki te x+1.
y=\frac{5}{x+1}
Mā te whakawehe ki te x+1 ka wetekia te whakareanga ki te x+1.
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]
whārite Simultaneous
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