Whakaoti mō y
y=17-3z
Whakaoti mō z
z=\frac{17-y}{3}
Tohaina
Kua tāruatia ki te papatopenga
3z+3+y=20
Tāpirihia te 1 ki te 2, ka 3.
3+y=20-3z
Tangohia te 3z mai i ngā taha e rua.
y=20-3z-3
Tangohia te 3 mai i ngā taha e rua.
y=17-3z
Tangohia te 3 i te 20, ka 17.
3z+3+y=20
Tāpirihia te 1 ki te 2, ka 3.
3z+y=20-3
Tangohia te 3 mai i ngā taha e rua.
3z+y=17
Tangohia te 3 i te 20, ka 17.
3z=17-y
Tangohia te y mai i ngā taha e rua.
\frac{3z}{3}=\frac{17-y}{3}
Whakawehea ngā taha e rua ki te 3.
z=\frac{17-y}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.
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