Whakaoti mō x
x=\frac{2\left(y-7z+252\right)}{7}
Whakaoti mō y
y=\frac{7\left(x+2z-72\right)}{2}
Tohaina
Kua tāruatia ki te papatopenga
7x+14z=504+2y
Me tāpiri te 2y ki ngā taha e rua.
7x=504+2y-14z
Tangohia te 14z mai i ngā taha e rua.
7x=2y-14z+504
He hanga arowhānui tō te whārite.
\frac{7x}{7}=\frac{2y-14z+504}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{2y-14z+504}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
x=\frac{2y}{7}-2z+72
Whakawehe 504+2y-14z ki te 7.
-2y+14z=504-7x
Tangohia te 7x mai i ngā taha e rua.
-2y=504-7x-14z
Tangohia te 14z mai i ngā taha e rua.
-2y=504-14z-7x
He hanga arowhānui tō te whārite.
\frac{-2y}{-2}=\frac{504-14z-7x}{-2}
Whakawehea ngā taha e rua ki te -2.
y=\frac{504-14z-7x}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
y=\frac{7x}{2}+7z-252
Whakawehe 504-7x-14z ki te -2.
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