Whakaoti mō x
x=-\frac{8y}{7}+80
Whakaoti mō y
y=-\frac{7x}{8}+70
Graph
Tohaina
Kua tāruatia ki te papatopenga
35x=2800-40y
Tangohia te 40y mai i ngā taha e rua.
\frac{35x}{35}=\frac{2800-40y}{35}
Whakawehea ngā taha e rua ki te 35.
x=\frac{2800-40y}{35}
Mā te whakawehe ki te 35 ka wetekia te whakareanga ki te 35.
x=-\frac{8y}{7}+80
Whakawehe 2800-40y ki te 35.
40y=2800-35x
Tangohia te 35x mai i ngā taha e rua.
\frac{40y}{40}=\frac{2800-35x}{40}
Whakawehea ngā taha e rua ki te 40.
y=\frac{2800-35x}{40}
Mā te whakawehe ki te 40 ka wetekia te whakareanga ki te 40.
y=-\frac{7x}{8}+70
Whakawehe 2800-35x ki te 40.
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