Whakaoti mō x
x=-\left(7+z-2y\right)
Whakaoti mō y
y=\frac{x+z+7}{2}
Tohaina
Kua tāruatia ki te papatopenga
3x+3z=-21+6y
Me tāpiri te 6y ki ngā taha e rua.
3x=-21+6y-3z
Tangohia te 3z mai i ngā taha e rua.
3x=6y-3z-21
He hanga arowhānui tō te whārite.
\frac{3x}{3}=\frac{6y-3z-21}{3}
Whakawehea ngā taha e rua ki te 3.
x=\frac{6y-3z-21}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.
x=2y-z-7
Whakawehe -21+6y-3z ki te 3.
-6y+3z=-21-3x
Tangohia te 3x mai i ngā taha e rua.
-6y=-21-3x-3z
Tangohia te 3z mai i ngā taha e rua.
-6y=-3x-3z-21
He hanga arowhānui tō te whārite.
\frac{-6y}{-6}=\frac{-3x-3z-21}{-6}
Whakawehea ngā taha e rua ki te -6.
y=\frac{-3x-3z-21}{-6}
Mā te whakawehe ki te -6 ka wetekia te whakareanga ki te -6.
y=\frac{x+z+7}{2}
Whakawehe -21-3x-3z ki te -6.
Ngā Tauira
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