Whakaoti mō x
x=\frac{3\left(y-7\right)}{4}
Whakaoti mō y
y=\frac{4x}{3}+7
Graph
Pātaitai
Linear Equation
3 y - 4 x = 21
Tohaina
Kua tāruatia ki te papatopenga
-4x=21-3y
Tangohia te 3y mai i ngā taha e rua.
\frac{-4x}{-4}=\frac{21-3y}{-4}
Whakawehea ngā taha e rua ki te -4.
x=\frac{21-3y}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
x=\frac{3y-21}{4}
Whakawehe 21-3y ki te -4.
3y=21+4x
Me tāpiri te 4x ki ngā taha e rua.
3y=4x+21
He hanga arowhānui tō te whārite.
\frac{3y}{3}=\frac{4x+21}{3}
Whakawehea ngā taha e rua ki te 3.
y=\frac{4x+21}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.
y=\frac{4x}{3}+7
Whakawehe 21+4x ki te 3.
Ngā Tauira
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