Whakaoti mō a
a=4-b
Whakaoti mō b
b=4-a
Tohaina
Kua tāruatia ki te papatopenga
2a=8-2b
Tangohia te 2b mai i ngā taha e rua.
\frac{2a}{2}=\frac{8-2b}{2}
Whakawehea ngā taha e rua ki te 2.
a=\frac{8-2b}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
a=4-b
Whakawehe 8-2b ki te 2.
2b=8-2a
Tangohia te 2a mai i ngā taha e rua.
\frac{2b}{2}=\frac{8-2a}{2}
Whakawehea ngā taha e rua ki te 2.
b=\frac{8-2a}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
b=4-a
Whakawehe 8-2a ki te 2.
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