Whakaoti mō x
x=\frac{21}{2}-3y
Whakaoti mō y
y=-\frac{x}{3}+\frac{7}{2}
Graph
Pātaitai
Linear Equation
2 x + 6 y = 21
Tohaina
Kua tāruatia ki te papatopenga
2x=21-6y
Tangohia te 6y mai i ngā taha e rua.
\frac{2x}{2}=\frac{21-6y}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{21-6y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=\frac{21}{2}-3y
Whakawehe 21-6y ki te 2.
6y=21-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{6y}{6}=\frac{21-2x}{6}
Whakawehea ngā taha e rua ki te 6.
y=\frac{21-2x}{6}
Mā te whakawehe ki te 6 ka wetekia te whakareanga ki te 6.
y=-\frac{x}{3}+\frac{7}{2}
Whakawehe 21-2x ki te 6.
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