Whakaoti mō x
x=-\frac{5y}{4}+2
Whakaoti mō y
y=\frac{8-4x}{5}
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x=8-5y
Tangohia te 5y mai i ngā taha e rua.
\frac{4x}{4}=\frac{8-5y}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{8-5y}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=-\frac{5y}{4}+2
Whakawehe 8-5y ki te 4.
5y=8-4x
Tangohia te 4x mai i ngā taha e rua.
\frac{5y}{5}=\frac{8-4x}{5}
Whakawehea ngā taha e rua ki te 5.
y=\frac{8-4x}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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