Whakaoti mō x
x=54-2y
Whakaoti mō y
y=-\frac{x}{2}+27
Graph
Tohaina
Kua tāruatia ki te papatopenga
30x=1620-60y
Tangohia te 60y mai i ngā taha e rua.
\frac{30x}{30}=\frac{1620-60y}{30}
Whakawehea ngā taha e rua ki te 30.
x=\frac{1620-60y}{30}
Mā te whakawehe ki te 30 ka wetekia te whakareanga ki te 30.
x=54-2y
Whakawehe 1620-60y ki te 30.
60y=1620-30x
Tangohia te 30x mai i ngā taha e rua.
\frac{60y}{60}=\frac{1620-30x}{60}
Whakawehea ngā taha e rua ki te 60.
y=\frac{1620-30x}{60}
Mā te whakawehe ki te 60 ka wetekia te whakareanga ki te 60.
y=-\frac{x}{2}+27
Whakawehe 1620-30x ki te 60.
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