Whakaoti mō x
x=4-3y
Whakaoti mō y
y=\frac{4-x}{3}
Graph
Tohaina
Kua tāruatia ki te papatopenga
25x=100-75y
Tangohia te 75y mai i ngā taha e rua.
\frac{25x}{25}=\frac{100-75y}{25}
Whakawehea ngā taha e rua ki te 25.
x=\frac{100-75y}{25}
Mā te whakawehe ki te 25 ka wetekia te whakareanga ki te 25.
x=4-3y
Whakawehe 100-75y ki te 25.
75y=100-25x
Tangohia te 25x mai i ngā taha e rua.
\frac{75y}{75}=\frac{100-25x}{75}
Whakawehea ngā taha e rua ki te 75.
y=\frac{100-25x}{75}
Mā te whakawehe ki te 75 ka wetekia te whakareanga ki te 75.
y=\frac{4-x}{3}
Whakawehe 100-25x ki te 75.
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