Whakaoti mō x
x=-\frac{y}{5}+63
Whakaoti mō y
y=315-5x
Graph
Tohaina
Kua tāruatia ki te papatopenga
100x+20y=35\times 180
Me whakarea ngā taha e rua ki te 180.
100x+20y=6300
Whakareatia te 35 ki te 180, ka 6300.
100x=6300-20y
Tangohia te 20y mai i ngā taha e rua.
\frac{100x}{100}=\frac{6300-20y}{100}
Whakawehea ngā taha e rua ki te 100.
x=\frac{6300-20y}{100}
Mā te whakawehe ki te 100 ka wetekia te whakareanga ki te 100.
x=-\frac{y}{5}+63
Whakawehe 6300-20y ki te 100.
100x+20y=35\times 180
Me whakarea ngā taha e rua ki te 180.
100x+20y=6300
Whakareatia te 35 ki te 180, ka 6300.
20y=6300-100x
Tangohia te 100x mai i ngā taha e rua.
\frac{20y}{20}=\frac{6300-100x}{20}
Whakawehea ngā taha e rua ki te 20.
y=\frac{6300-100x}{20}
Mā te whakawehe ki te 20 ka wetekia te whakareanga ki te 20.
y=315-5x
Whakawehe 6300-100x ki te 20.
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