Whakaoti mō x
x=\frac{7y}{2}+9
Whakaoti mō y
y=\frac{2\left(x-9\right)}{7}
Graph
Pātaitai
Linear Equation
2x-7y=18
Tohaina
Kua tāruatia ki te papatopenga
2x=18+7y
Me tāpiri te 7y ki ngā taha e rua.
2x=7y+18
He hanga arowhānui tō te whārite.
\frac{2x}{2}=\frac{7y+18}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{7y+18}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=\frac{7y}{2}+9
Whakawehe 18+7y ki te 2.
-7y=18-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{-7y}{-7}=\frac{18-2x}{-7}
Whakawehea ngā taha e rua ki te -7.
y=\frac{18-2x}{-7}
Mā te whakawehe ki te -7 ka wetekia te whakareanga ki te -7.
y=\frac{2x-18}{7}
Whakawehe 18-2x ki te -7.
Ngā Tauira
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