Whakaoti mō b
b=\frac{a-50}{4}
Whakaoti mō a
a=4b+50
Tohaina
Kua tāruatia ki te papatopenga
-4b=50-a
Tangohia te a mai i ngā taha e rua.
\frac{-4b}{-4}=\frac{50-a}{-4}
Whakawehea ngā taha e rua ki te -4.
b=\frac{50-a}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
b=\frac{a}{4}-\frac{25}{2}
Whakawehe 50-a ki te -4.
a=50+4b
Me tāpiri te 4b ki ngā taha e rua.
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