Whakaoti mō x
x=6y
Whakaoti mō y
y=\frac{x}{6}
Graph
Tohaina
Kua tāruatia ki te papatopenga
50x+40y=51x+40\times 0.85y
Pahekotia te 50x me 1x, ka 51x.
50x+40y=51x+34y
Whakareatia te 40 ki te 0.85, ka 34.
50x+40y-51x=34y
Tangohia te 51x mai i ngā taha e rua.
-x+40y=34y
Pahekotia te 50x me -51x, ka -x.
-x=34y-40y
Tangohia te 40y mai i ngā taha e rua.
-x=-6y
Pahekotia te 34y me -40y, ka -6y.
\frac{-x}{-1}=-\frac{6y}{-1}
Whakawehea ngā taha e rua ki te -1.
x=-\frac{6y}{-1}
Mā te whakawehe ki te -1 ka wetekia te whakareanga ki te -1.
x=6y
Whakawehe -6y ki te -1.
50x+40y=51x+40\times 0.85y
Pahekotia te 50x me 1x, ka 51x.
50x+40y=51x+34y
Whakareatia te 40 ki te 0.85, ka 34.
50x+40y-34y=51x
Tangohia te 34y mai i ngā taha e rua.
50x+6y=51x
Pahekotia te 40y me -34y, ka 6y.
6y=51x-50x
Tangohia te 50x mai i ngā taha e rua.
6y=x
Pahekotia te 51x me -50x, ka x.
\frac{6y}{6}=\frac{x}{6}
Whakawehea ngā taha e rua ki te 6.
y=\frac{x}{6}
Mā te whakawehe ki te 6 ka wetekia te whakareanga ki te 6.
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