Whakaoti mō c_y
c_{y}=\frac{7x-s}{2}
Whakaoti mō s
s=7x-2c_{y}
Graph
Tohaina
Kua tāruatia ki te papatopenga
2c_{y}=7x-s
Tangohia te s mai i ngā taha e rua.
\frac{2c_{y}}{2}=\frac{7x-s}{2}
Whakawehea ngā taha e rua ki te 2.
c_{y}=\frac{7x-s}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
s=7x-2c_{y}
Tangohia te 2c_{y} mai i ngā taha e rua.
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