Whakaoti mō x
x=\frac{72-8y}{7}
Whakaoti mō y
y=-\frac{7x}{8}+9
Graph
Tohaina
Kua tāruatia ki te papatopenga
28x=288-32y
Tangohia te 32y mai i ngā taha e rua.
\frac{28x}{28}=\frac{288-32y}{28}
Whakawehea ngā taha e rua ki te 28.
x=\frac{288-32y}{28}
Mā te whakawehe ki te 28 ka wetekia te whakareanga ki te 28.
x=\frac{72-8y}{7}
Whakawehe 288-32y ki te 28.
32y=288-28x
Tangohia te 28x mai i ngā taha e rua.
\frac{32y}{32}=\frac{288-28x}{32}
Whakawehea ngā taha e rua ki te 32.
y=\frac{288-28x}{32}
Mā te whakawehe ki te 32 ka wetekia te whakareanga ki te 32.
y=-\frac{7x}{8}+9
Whakawehe 288-28x ki te 32.
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