Whakaoti mō x
x=\frac{8y}{7}
Whakaoti mō y
y=\frac{7x}{8}
Graph
Tohaina
Kua tāruatia ki te papatopenga
-5x+5y+3y=2x
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te x-y.
-5x+8y=2x
Pahekotia te 5y me 3y, ka 8y.
-5x+8y-2x=0
Tangohia te 2x mai i ngā taha e rua.
-7x+8y=0
Pahekotia te -5x me -2x, ka -7x.
-7x=-8y
Tangohia te 8y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
\frac{-7x}{-7}=-\frac{8y}{-7}
Whakawehea ngā taha e rua ki te -7.
x=-\frac{8y}{-7}
Mā te whakawehe ki te -7 ka wetekia te whakareanga ki te -7.
x=\frac{8y}{7}
Whakawehe -8y ki te -7.
-5x+5y+3y=2x
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te x-y.
-5x+8y=2x
Pahekotia te 5y me 3y, ka 8y.
8y=2x+5x
Me tāpiri te 5x ki ngā taha e rua.
8y=7x
Pahekotia te 2x me 5x, ka 7x.
\frac{8y}{8}=\frac{7x}{8}
Whakawehea ngā taha e rua ki te 8.
y=\frac{7x}{8}
Mā te whakawehe ki te 8 ka wetekia te whakareanga ki te 8.
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